%0 Journal Article
%A Král, Jaroslav
%T Set-theoretical operations on $k$-multiple languages
%J Kybernetika
%D 1967
%P -320
%V 03
%N 4
%I mathdoc
%U http://geodesic.mathdoc.fr/item/KYB_1967__3_4_a0/
%G en
%F KYB_1967__3_4_a0