%0 Journal Article
%A Teresa Regińska
%T Approximation of eigenvalues for a class of differential problems on an infinite interval
%J Mathematica Applicanda
%D 1978
%P  127-134
%V 6
%N 13
%I mathdoc
%U http://geodesic.mathdoc.fr/articles/10.14708/ma.v6i13.1425/
%R 10.14708/ma.v6i13.1425
%G pl
%F 10_14708_ma_v6i13_1425