%0 Journal Article
%A E. Wachnicki
%T On boundary value problems for some partial differentia equations of higher order
%J Commentationes Mathematicae
%D 1977
%P  215-233
%V 20
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/articles/10.14708/cm.v20i1.5893/
%R 10.14708/cm.v20i1.5893
%G pl
%F 10_14708_cm_v20i1_5893