%0 Journal Article
%A Andrzej Pokrzywa
%T Spectra of approximating operators
%J Mathematica Applicanda
%D 1995
%P  87-100
%V 24
%N 38
%I mathdoc
%U http://geodesic.mathdoc.fr/articles/10.14708/ma.v24i38.1836/
%R 10.14708/ma.v24i38.1836
%G pl
%F 10_14708_ma_v24i38_1836