%0 Journal Article
%A Havel, Václav
%T Free extensions of coupled systems
%J Archivum mathematicum
%D 1967
%P 65-68
%V 03
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/ARM_1967__3_2_a2/
%G en
%F ARM_1967__3_2_a2