%0 Journal Article %A G. Lassner %A A. Uhlmann %T On Op*-algebras of unbounded operators %J Informatics and Automation %D 1975 %P 168-173 %V 135 %I mathdoc %U http://geodesic.mathdoc.fr/item/TRSPY_1975_135_a17/ %G en %F TRSPY_1975_135_a17