%0 Journal Article
%A Kurek, Jan
%T On the natural operators of Bianchi type
%J Archivum mathematicum
%D 1991
%P 25-29
%V 27
%N 1-2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/ARM_1991__27_1-2_a3/
%G en
%F ARM_1991__27_1-2_a3