%0 Journal Article %A Trlifaj, Jan %T Whitehead property of modules %J Czechoslovak Mathematical Journal %D 1986 %P 467-475 %V 36 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1986.102106/ %R 10.21136/CMJ.1986.102106 %G en %F 10_21136_CMJ_1986_102106