%0 Journal Article
%A E. Nordgren
%A M. Radjabalipour
%A H. Radjavi
%A P. Rosenthal
%T Quadratic operators and invariant subspaces
%J Studia Mathematica
%D 1988
%P 263-268
%V 88
%N 3
%U http://geodesic.mathdoc.fr/articles/10.4064/sm-88-3-263-268/
%R 10.4064/sm-88-3-263-268
%G en
%F 10_4064_sm_88_3_263_268