%0 Journal Article
%A Andrzej Krupa
%A Bogdan Zawisza
%T Ultrapowers of unbounded selfadjoint operators
%J Studia Mathematica
%D 1987
%P 101-120
%V 87
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/articles/10.4064/sm-87-2-101-120/
%R 10.4064/sm-87-2-101-120
%G en
%F 10_4064_sm_87_2_101_120