%0 Journal Article %A M. R. Sikorskiǐ %T Some applications of Boolean-valued models to the study of operators on semi-normed spaces %J Izvestiâ vysših učebnyh zavedenij. Matematika %D 1989 %P 82-84 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/IVM_1989_2_a12/ %G ru %F IVM_1989_2_a12