%0 Journal Article
%A Neuman, František
%T Smoothness as an invariant property of coefficients of linear differential equations
%J Czechoslovak Mathematical Journal
%D 1989
%P 513-521
%V 39
%N 3
%I mathdoc
%U http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1989.102323/
%R 10.21136/CMJ.1989.102323
%G en
%F 10_21136_CMJ_1989_102323