%0 Journal Article
%A E. Lewińska
%T Approximation of the eigenvalue problem for elliptic operator by finite element method with numerical integration
%J Mathematica Applicanda
%D 1994
%P  3-14
%V 23
%N 37
%I mathdoc
%U http://geodesic.mathdoc.fr/articles/10.14708/ma.v23i37.1824/
%R 10.14708/ma.v23i37.1824
%G pl
%F 10_14708_ma_v23i37_1824