The La (Ba2-xLax)Cu3- yOz single crystals : structures and conductivity G. Collin, A.C. Audier, P.A. Albouy, S. Senoussi, R. Comes, M. Konczykowski et F. Rullier-Albenque J. Phys. France, 50 1 (1989) 77-90 DOI: 10.1051/jphys:0198900500107700