%0 Journal Article
%A Drábek, Pavel
%T Ranges of $a$-homogeneous operators and their perturbations
%J Časopis pro pěstování matematiky
%D 1980
%P 167-183
%V 105
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/articles/10.21136/CPM.1980.118058/
%R 10.21136/CPM.1980.118058
%G en
%F 10_21136_CPM_1980_118058