%0 Journal Article
%A Niechwiej, Jan
%T Two conditions for subnormality of unbounded operators
%J Glasgow mathematical journal
%D 2001
%P 23-28
%V 43
%N 1
%U http://geodesic.mathdoc.fr/articles/10.1017/S0017089501010035/
%R 10.1017/S0017089501010035
%F 10_1017_S0017089501010035