• PUBLICATIONS

1992

ARTICLES IN JOURNALS - 1992

A.- Superconducting Oxides.

1.- Tubular Bismuth Cuprates, a Large Family (Bi2+xSr2-xCuO6+d)n(Sr8-x'Cu6O16+y) Closely
Related to the 2201-Superconductor: An Electron Microscopy Study.
Journal of Solid State Chemistry, vol. 97 - (1992), p. 48-55.
M.T. Caldés, M. Hervieu, A. Fuertes, and B. Raveau.

2.- A Monoclinic Form of the Seventh Member of the Tubular Oxides 
(Bi2+xSr2-xCuO6)nSr8-x'Cu6O16+y.
Journal of Solid State Chemistry, vol. 98 - (1992), p. 48-58.
M.T. Caldés, M. Hervieu, A. Fuertes, and B. Raveau.

3.- Structural Mechanisms in the Bismuth Strontium Cuprates: HREM Study of Domains and
Boundaries in Tubular Phases.
Journal of Solid State Chemistry, vol. 98 - (1992), p. 301-311.
M.T. Caldés, M. Hervieu, A. Fuertes, and B. Raveau.

4.- Structural Characterization of R2BaCuO5 (R = Y, Lu, Yb, Tm, Er, Ho, Dy, Gd, Eu and Sm)
Oxides by X-Ray and Neutron Diffraction.
Journal of Solid State Chemistry, vol. 100 - (1992), p. 201-211.
A. Salinas-Sánchez, J.L. García-Muñoz, J. Rodríguez-Carvajal, R. Saez-Puche, and
J.L. Martínez.

5.- Crystal Structure of La1.85Ba0.15CaCuO6+y Determined by Neutron Powder Diffraction.
Solid State Communications, vol. 81 (8) - (1992), p. 677-681.
J.M. Navarro, A. Fuertes, P. Gómez-Romero, and J. Rodríguez-Carvajal.

6.- HREM investigation of n = 4 members of the tubular bismuth cuprates 
(Bi2+xSr2-xCuO6)n (Sr8Cu6O16+y).
Microscopy Microanalysis and Microstructures, vol. 3 - (1992), p. 415-431.
B. Domenges, M.T. Caldés, M. Hervieu, A. Fuertes, and B. Raveau.

7.- Weak ferromagnetism and spin-glass-like behavior in the rare-earth cuprates R2CuO4 
(R = Tb, Dy, Ho, Er, Tm, and Y).
Physical Review B, vol. 45 (9) - (1992), p. 4729-4737.
M. Tovar, X. Obradors, F. Pérez, S.B. Oseroff, R.J. Duro, J. Rivas, D. Chateigner, P. Bordet,
and J. Chenavas.

8.- Thermally activated flux motion in Nd1.85Ce0.15CuO4-y.
Physical Review B, vol. 46 (18) - (1992), p. 11952-11957.
L. Fábrega, J. Fontcuberta, S. Piñol, C.J. van der Beek, and P.H. Kes.

9.- Giant resistive peak close to the superconducting transition in L2-xCexCuO4 single
crystals.
Physical Review B, vol. 46 (21) - (1992), p. 14089-14094.
M.A. Crusellas, J. Fontcuberta, and S. Piñol.

10.- Metastable metallic state and hysteresis below the metal-insulator transition in
PrNiO3.
Physical Review B, vol. 46 (24) - (1992), p. 15683-15688.
X. Granados, J. Fontcuberta, X. Obradors, and J.B. Torrance.

11.- Magnetic interactions, weak ferromagnetism, and field-induced transitions in Nd2NiO4.
Physical Review B, vol. 45 (6) - (1992), p. 2830-2843.
X. Batlle, X. Obradors, and B. Martínez.

12.- Critical fields and fundamental lenghts in a superconducting electron-doped 
Pr1.85Ce0.15CuO4-y single crystal.
Physical Review B, vol. 46 (9) - (1992), p. 5581-5587.
L. Fábrega, B. Martínez, J. Fontcuberta, X. Obradors, and S. Piñol.

13.- Neutron-diffraction study of RNiO3 (R = La, Pr, Nd, Sm): Electronically induced
structural changes across the metal-insulator transition.
Physical Review B, vol. 46 (8) - (1992), p. 4414-4425.
J.L. García Muñoz, J. Rodríguez-Carvajal, P. Lacorre, and J.B. Torrance.

14.- Observation of magnetic order in the double-layer system La2MCu2O6+d (M = Ca, Sr).
Physical Review B, vol. 46 (5) - (1992), p. 3084-3088.
E.J. Ansaldo, C. Niedermayer, H. Glückler, C.E. Stronach, T.M. Riseman, D.R. Noakes,
X. Obradors, A. Fuertes, J.M. Navarro, P. Gómez, N. Casañ,B. Martínez, F. Pérez,
J. Rodríguez-Carvajal, R.S. Cary, and K. Chow.

15.- Approaching the I-M transition in Nd2-xSrxNiO4+d.
Physica C, vol. 191 - (1992), p. 371-376.
X. Granados, J. Fontcuberta, J. Alonso, M. Vallet, and J.M. Gonzalez Calbet.

16.- Electronically induced structural anomalies across the metal-insulator transition in
RNiO3 
(R = Pr, Nd).
Physica B, vol. 180 (181) - (1992), p. 306-308.
J.L. García-Muñoz, J. Rodríguez-Carvajal, and P. Lacorre.

17.- Irreversibility line and critical currents in a Pr2-xCexCuO4 single cristal.
Superconductor Science and Technology, vol. 5 - (1992), p. 264-267.
L. Fábrega, M.A. Crusellas, S. Piñol, J. Fontcuberta, B. Martínez, and X. Obradors.

18.- High Frequency Intergranular AC Losses in EuBa2Cu3O7 Ceramics.
Superconductor Science and Technology, vol. 5 - (1992), p. 268-271.
E. Nguyen, D. Castello, J. Fontcuberta, and X. Obradors.

19.- Sudden Appearance of an Unusual Spin Density Wave at the Metal-Insulator Transition
in the Perovskites RNiO3 (R = Pr, Nd).
Europhysics Letters, vol. 20 (3) - (1992), p. 241-247.
J.L. García-Muñoz, J. Rodríguez-Carvajal, and P. Lacorre.

20.- Magnetic-Field-Induced Weak Ferromagnetic Order in Y2CuO4.
Europhysics Letters, vol. 20 (7) - (1992), p. 651-656.
A. Rouco, X. Obradors, M. Tovar, P. Bordet, D. Chateigner, and J. Chenavas.

21.- Topological excitations vs intergranular phase-coherence in a HTSC Y0.5Sm0.5Ba2Cu3O7
ceramics.
Zeitschrift für Physik B - Condensed Matter, vol. 87 - (1992), p. 21-28.
J. Fontcuberta, J. Jurado, X. Obradors, M.V. Cabañas, M. Vallet, and J.M. González-Calbet.

22.- Magnetic correlations in YBa2(Cu1-xFex)3O6+y.
Journal of Magnetism and Magnetic Materials, vol. 104-107 - (1992), p. 555-556.
J.L. García-Muñoz, J. Rodríguez-Carvajal, S.H. Kilcoyne, C.J. Boardman, and R. Cywinski.

23.- Magnetism in the rare-earth cuprates R2Cu2O5 (R = Y, Ho, Er, Yb, Tm).
Journal of Magnetism and Magnetic Materials, vol. 104-107 - (1992), p. 617-618.
J.L. García Muñoz, J. Rodríguez-Carvajal, and X. Obradors.

24.- u+SR study of magnetic order in La2NiO4+d.
Journal of Magnetism and Magnetic Materials, vol. 104-107 - (1992), p. 941-943.
B. Martínez, X. Obradors, E.J. Ansaldo, C. Niedermayer, D.R. Noakes, M.J. Sayagués,
M. Vallet, and J. González-Calbet.

25.- Study of the magnetic properties of Nd2NiO4.
Journal of Magnetism and Magnetic Materials, vol. 104-107 - (1992), p. 918-920.
X. Batlle, B. Martínez, X. Obradors, M. Pernet, M. Vallet, J. González-Calvet, and J. Alonso.

26.- Magnetic shielding properties of plasma sprayed YBa2Cu3O7-x on nickel substrates.
Cryogenics, vol. 32 (11) - (1992), p. 1104-1108.
D. Castello, J. Fontcuberta, M. Pont, and J.S. Muñoz.

B.- Magnetic Properties of Materials.

27.- Random anisotropy induced by structural disorder.
Journal of Magnetism and Magnetic Materials, vol. 104-107 - (1992), p. 123-124.
B. Martínez, A. Labarta, F. Badia, and J. Tejada.

28.- Dilution effects in the strongly frustrated system SrGa12-xCrxO19.
Journal of Magnetism and Magnetic Materials, vol. 104-107 - (1992), p. 1645-1646.
A. Rouco, F. Sandiumenge, B. Martínez, S. Galí, M. Tovar, and X. Obradors.

29.- Magnetic study of spin freezing in the spin glass BaCo6Ti6O19: Static and dynamic
analysis.
Physical Review B, vol. 46 (14) - (1992), p. 8994-9001.
A. Labarta, X. Batlle, B. Martínez, and X. Obradors.

30.- Magnetic dilution in the strongly frustrated kagome antiferromagnet SrGa12-xCrxO19.
Physical Review B, vol. 46 (17) - (1992), p. 10786-10792.
B. Martínez, F. Sandiumenge, A. Rouco, A. Labarta, J. Rodríguez-Carvajal, M. Tovar,
M.T. Causa, S. Galí, and X. Obradors.

31.- Quantum study of the spin wave spectrum of a superlattice with ferromagnetic
interfacial coupling.
Journal of Physics: Condensed Matter, vol. 4 - (1992), p. 5001-5014.
B. Martínez and R.E. Camley.

32.- Crystal structure and Spin-Glass Behaviour in R-Type BaFe4-2xSn2+xCoxO11 (x = 1.1)
Hexagonal Ferrite.
Solid State Communications, vol. 83 (8) - (1992), p. 649-654.
B. Martínez, F. Sandiumenge, S. Galí, X. Obradors, and R. Rodríguez-Clemente.

33.- X-Ray Single Crystal study of Cobalt-Tin containing Hexagonal Ferrites: 
BaFe12-2xCoxSnxO19 (x~1.28) and BaFe4-2ySn2+yCoyO11 (y~1.32).
Materials Research Bulletin, vol. 27 - (1992), p. 417-424.
F. Sandiumenge, S. Galí, and R. Rodríguez-Clemente.

34.- Cation distribution and magnetization of BaFe12-2xCoxSnxO19 (x = 0.9, 1.28) single
crystals.
Journal of Applied Physics, vol. 72 (10) - (1992), p. 4608-4614.
F. Sandiumenge, B. Martínez, X. Batlle, S. Galí, and X. Obradors.

35.- First Ferromagnetic Interaction in a Heteropoly Complex:
[CoII4O14(H2O)2(PW9O27)2]10-. Experiment and Theory for Intramolecular Anisotropic
Exchange Involving the Four Co(II) Atoms.
Journal of the American Chemical Society, vol. 114 - (1992), p. 10380-10383.
N. Casañ-Pastor, J. Bas-Serra, E. Coronado, G. Pourroy, and L.C.W. Baker.

36.- Magnetostructural Correlations in [[alpha]]-VO(HPO4).2H2O: Magnetic Susceptibility
and 31P Solid-State NMR Study.
Chemistry of Materials, vol. 4 - (1992), p. 108-111.
G. Villeneuve, K.S. Suh, P. Amorós, N. Casañ-Pastor, and D. Beltrán-Porter.

37.- Magnetic Properties of Mixed-Valence Heteropoly Blues. Interactions within Complexes Containing
Paramagnetic Atoms in Various Sites as Well as "Blue" Electrons Delocalized over Polytungstate Frameworks.
Journal of the American Chemical Society, vol. 114 - (1992), p. 10384-10394.
N. Casañ-Pastor and L.C.W. Baker.

C.- Synthesis, Characterization, and Properties of Inorganic and Organometallic 
Compounds.

38.- Palladium-promoted Benzothiophene Condensation in NS2 Ligands.
Journal of the Chemical Society, Chemical Communications, vol. 2 - (1992), p. 163-164.
F. Teixidor, G. Sánchez, N. Lucena, Ll. Escriche, R. Kivekäs, and J. Casabó.

39.- Silver Coordination to exo-Dithio-7,8-dicarba-nido-undecaborate Derivatives. Sulfur to
Metal and Open Face to Metal: Two Ways of Bonding.
Journal of the Chemical Society, Chemical Communications, vol. 18 - (1992), p. 1279-1280.
F. Teixidor, J.A. Ayllón, C. Viñas, J. Rius, C. Miravitlles, and J. Casabó.

40.- A Novel B-H-Ru Agostic Bond. Crystal Structure of 
[RuCl{7,8-u-S(CH2CH2)S-C2B9H10}(PPh3)2]Me2CO.
Journal of the Chemical Society, Chemical Communications, vol. 18 - (1992), p. 1281-1282.
F. Teixidor, J.A. Ayllón, C. Viñas, R. Kivekäs, R. Sillanpää, and J. Casabó.

41.- Ring-Fused and Spiro Cyclopentenones by Ni(CO)4-Promoted Intermolecular
Carbonylative Cycloaddition of Acetylenes with 3-Halo- and 1-(Halomethyl) cycloalkenes.
Journal of the American Chemical Society, vol. 114 - (1992), p. 10449-10461.
Ll. Pagès, A. Llebaría, F. Camps, E. Molins, C. Miravitlles, and J.M. Moretó.

42.- Comparative Study of NS2 Ligands, S-Alkyl vs S-Aryl. Molecular Structure of 
[2,6-Bis(((2-(methoxycarbonyl)phenyl)thio)methyl)pyridine]dichlorocopper (II).
Inorganic Chemistry, vol. 30 - (1992), p. 4931-4935.
F. Teixidor, G. Sánchez-Castelló, N. Lucena, Ll. Escriche, R. Kivekäs, M. Sundberg, and
J. Casabó.

43.- Structural and Magnetic Characterization of CaCu(HCOO)4 and Ca2Cu(HCOO)6: Two
New 
One-Dimensional Ferromagnetic Bis(m-oxo-ligand)-Bridged Chains.
Inorganic Chemistry, vol. 31 - (1992), 2915-2919.
M.J. Sanchis, P. Gómez-Romero, J.V. Folgado, F. Sapiña, R. Ibáñez, A. Beltrán, J. García,
and D. Beltrán.

44.- A New Magnetic Lattice in the "Cdta Family". Structure and Magnetic Properties of the
Novel Homo- and Heterometallic Chains Cu3[M(cdta)]2(NO3)2.15H2O (M = Cu, Ni).
Inorganic Chemistry, vol. 31 - (1992), p. 3851-3858.
F. Sapiña, E. Escrivá, J.V. Folgado, A. Beltrán, D. Beltrán, A. Fuertes, and M. Drillon.

45.- Metal Transfer and Double Acyl Formation in the Reaction of ((Trimethylsilyl)ethynyl)
(Fischer carbene)metal Complexes with Co2(CO)8.
Organometallics, vol. 11 - (1992), p. 3507-3510.
L. Jordi, J.M. Moretó, S. Ricart, J.M. Viñas, M. Mejías, and E. Molins.

46.- Synthesis, Structure and Spectroscopic Characterization of Sodium
Tetrabutylammonium Tris(thiobenzilato)-molybdate (IV).
Journal of the Chemical Society: Dalton Transactions, (1992), p. 1005-1008.
A. Cervilla, E. Llopis, A. Doménech, A. Rivera, P. Palanca, and P. Gómez-Romero.

47.- Conformation and Selectivity towards Silver of Thiocrown Ethers based on Xylyl
Subunits.
Journal of the Chemical Society: Dalton Transactions, (1992), p. 2889-2897.
J.C. Lockhart, D.P. Mousley, M.N. Stuart-Hill, N.P. Tomkinson, F. Teixidor, M.P. Almajano,
Ll. Escriche, J. Casabó, R. Sillanpää, and R. Kivekäs.

48.- Copper complexes with a pyrazole derivative ligand. Crystal structure of tetrakis 
{[3,5-bis(pyridin-2-yl)pyrazolate)-(aqua)copper (II)] nitrate monohydrate}.
Inorganica Chimica Acta, vol. 195 - (1992), p. 61-66.
J. Pons, X. López, J. Casabó, F. Teixidor, A. Caubet, J. Rius, and C. Miravitlles.

49.- Some attempts to prepare chelating nitrophenylpalladium (II) complexes. Synthesis of
covalent arylpalladium (II) perchlorate complexes. Crystal and molecular structure of
catena-trans-{[Pd{C6H2(NO2)3-2,4,6}(tht)2(H2O)]ClO4}n (tht = tetrahydrothiophene).
Journal of Organometallic Chemistry, vol. 441 - (1992), p. 487-498.
J. Vicente, A. Arcas, M.V. Borrachero, E. Molins, and C. Miravitlles.

50.- Methionine and Histidine Pd(II) and Pt(II) Complexes: Crystal Structures and
Spectroscopic Properties.
Journal of Inorganic Biochemistry, vol. 48 - (1992), p. 135-152.
A. Caubet, V. Moreno, E. Molins, and C. Miravitlles.

51.- Magnetic properties of the low-temperature ferrimagnet [Cr(H2O)(NH3)5][FeCl6].
Journal of Magnetism and Magnetic Materials, vol. 114 - (1992), p. 243-245.
M.C. Morón, F. Palacio, J. Pons, and J. Casabó.

D.- New Organic Materials with Electric, Magnetic, Chiral properties, ...

52.- Extensive Chlorination of Methylnaphthalenes, Friedel-Crafts Alkylation of
Pentachlorobenzene by Heptachloro(chloromethyl)naphthalenes, and Related Results.
Journal of Organic Chemistry, vol. 57 - (1992), p. 5712-5719.
R. García, J. Riera, J. Carilla, L. Julià, E. Molins, and C. Miravitlles.

53.- Heterocyclic Betaines. 13. Synthesis and Electronic and Molecular Structures of
Methylenepyridinium and Methyleneimidazolium Azolate Inner Salts.
Journal of Organic Chemistry, vol. 57 - (1992), p. 4829-4834.
E. Alcalde, Ll. Pérez-García, C. Miravitlles, J. Rius, and E. Valentí.

54.- Structure and Reactivity of Five- and Six-Ring N, N-, N, O-, and O, O-Acetals: A Lesson
in Allylic 1,3-Strain (A1.3 Strain).
Helvetica Chimica Acta, vol. 75 - (1992), p. 913-934.
D. Seebach, B. Lamatsch, R. Amstutz, A.K. Beck, M. Dobler, M. Egli, R. Fitzi, M. Gautschi,
B. Herradón, P.C. Hidber, J.J. Irwin, R. Locher, M. Maestro, T. Maetzke, A. Mouriño,
E. Pfammatter, D.A. Plattner, C. Schickli, W.B. Schweizer, P. Seiler, G. Stucky, W. Petter,
J. Escalante, E. Juaristi, D. Quintana, C. Miravitlles, and E. Molins.

55.- Polyhalogenoaromatic Compounds. Part 51. Synthesis of new Heterocycles from
pentachloropyridine and 2,3,5,6-Tetrachloropyridine with aliphatic diamines.
Heterocycles, vol. 34 (8) - (1992), p. 1539-1545.
L. Juliá, J. Rius, and H. Suschitzky.

56.- Synthesis of a Series of Symmetrically Disubstituted Diacetylenes with
Polychlorophenyl Rings as Side Groups and Linear Polyether Chains as Spacers.
Synthesis, vol. 11 - (1992), p. 1163-1169.
E. Hernández, A. Galán, C. Rovira, and J. Veciana.

57.- Crystal Structure of Hexadecachloro-9,9'-Bifluorenylidene, the twistest carbon double
bond.
Butlletí de la Societat Catalana de Ciències, vol. XIII (1) - (1992), p. 201-209.
E. Molins and C. Miravitlles.

58.- Structure of 2-(2,6-Dimethoxyphenyl)-7-hydroxy-4H-1-benzopyran-4-one 
(7-Hydroxy-2',6'-dimethoxyflavone).
Acta Crystallographica, C48 - (1992), p. 86-88.
J.C. Wallet, E.M. Gaydou, E. Espinosa, O. Osorno, E. Molins, and C. Miravitlles.

E.- Characterization Methodologies.

59.- Increasing the Power of Classical Direct Methods of Solving Crystal Structures. The
[[chi]]2 Tangent Formula.
Acta Crystallographica, A48 - (1992), p. 28-30.
J. Rius and C. Miravitlles.

60.- Improvement of the tangent formula by constraints based on additional information.
II.
Acta Crystallographica, A48 - (1992) p. 69-70.
J. Rius and C. Miravitlles.

F.- Crystal Growth.

61.- Influence of temperature and tetramethylsilane partial pressure on the [[beta]]-SiC
deposition by cold wall chemical vapor deposition.
Journal of Crystal Growth, vol. 125 - (1992), p. 533-542.
R. Rodríguez-Clemente, A. Figueras, S. Garelik, B. Armas, and C. Combescure.

62.- Dipyramidal habit of flux-grown cobalt-tin doped barium ferrite.
Journal of Crystal Growth, vol. 121 - (1992), p. 247-249.
F. Sandiumenge, S. Veintemillas-Verdaguer, R. Rodríguez-Clemente, and S. Galí.

63.- Solubility of berlinite in H2SO4-HCl mixtures under hydrothermal conditions.
Journal of Crystal Growth, vol. 116 - (1992), p. 427-435.
J. Gómez-Morales, R. Rodríguez-Clemente, J. Durand, and L. Cot.

64.- Influence de l'oxygène sur la vapodéposition d'AlN.
Comptes Rendus Academie des Sciences de Paris, vol. 314 (II) - (1992), p. 909-914.
B. Aspar, A. Figueras, R. Rodríguez-Clemente, B. Armas, and C. Combescure.

65.- The mechanism of Precipitation of Colloidal Variscite (AlPO4.2H2O) Particles.
Journal of Colloid and Interface Science, vol. 151 (2) - (1992), p. 555-561.
J. Gómez-Morales, R. Rodríguez-Clemente, and E. Matijevic.

66.- Growth and properties of CVD-SiC layers using tetramethylsilane.
Materials Science and Engineering, B11 - (1992), p. 83-87.
A. Figueras, S. Garelik, J. Santiso, R. Rodríguez-Clemente, B. Armas, C. Combescure,
R. Berjoan, J.M. Saurel, and R. Caplain.

67.- Obtention of SiC Layers by LPCVD using tetramethylsilane.
Le Vide, les Couches Minces, supl. vol. 261 - (1992), p. 274-276.
B. Armas, C. Combescure, A. Figueras, S. Garelik, J. Santiso, R. Rodríguez-Clemente,
A. Mazel, Y. Kihn, and J. Sevely.

68.- HREM observation of ceramic layers obtained by LPCVD.
Electron Microscopy, vol. 1 - (1992), p. 503-504.
D. Dorignac, A. Mazel, J. Sévely, B. Armas, C. Combescure, B. Aspar, and A. Figueras.

G. Optical Properties of Materials.

69.- RNiO3 perovskites (R=Pr, Nd): Nickel valence and the metal-insulator transition
investigated by x-ray-absorption spectroscopy.
Physical Review B, vol. 46 (23) - (1992), p. 14975-14984.
M. Medarde, A. Fontaine, J.L. García-Muñoz, J. Rodríguez-Carvajal, M. de Santis, M. Sacchi,
G. Rossi, and P. Lacorre.

70.- Raman study of R2-x CexCuO4 (R = Pr, Nd, Sm): Resonance effects.
Physical Review B, vol. 46 (13) - (1992), p. 8683-8686.
M.L. Sanjuán, M.A. Laguna, S. Piñol, P. Canfield, and Z. Fisk.

71.- Raman-scattering study of GaP/InP strained-layer superlattices.
Physical Review B, vol. 45 - (1992), p. 9054-9058.
M.I. Alonso, P. Castrillo, G. Armelles, A. Ruiz, M. Recio, and F. Briones.

72.- Modulation excitation spectroscopy: A method to determine the symmetry of
electronic states.
Applied Physics Letters, vol. 60 - (1992), p. 3277 - 3279.
G. Armelles, M.I. Alonso, P. Castrillo, and P.S. Domínguez.

73.- Difference frequency Raman scattering and confined optical phonons in
ultrashort-period (GaAs)n/(AlAs)n superlattices.
Solid State Communications, vol. 84 - (1992), p. 275-279.
J. Spitzer, I. Gregora, T. Ruf, M. Cardona, K. Ploog, F. Briones, and M.I. Alonso.

74.- Optical characterization of AlAs / GaInAs multiple quantum wells.
Superlattices and Microstructures, vol. 12 - (1992), p. 207-210.
M.I. Alonso, M. Garriga, G. Armelles, P. Castrillo, A. Ruiz, and K. Ploog

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