%0 Journal Article
%A Yu. M. Polyakova
%T Further properties of the categories $P_d$ and $S_d$
%J Trudy Matematicheskogo Instituta imeni V.A. Steklova
%D 1999
%P 1040-1041
%V 54
%N 5
%U http://geodesic.mathdoc.fr/item/RM_1999_54_5_a14/
%G en
%F RM_1999_54_5_a14