%0 Journal Article
%A NYSTEDT, PATRIK
%A ÖINERT, JOHAN
%A PINEDO, HÉCTOR
%T EPSILON-STRONGLY GROUPOID-GRADED RINGS, THE PICARD INVERSE CATEGORY AND COHOMOLOGY
%J Glasgow mathematical journal
%D 2020
%P 233-259
%V 62
%N 1
%U http://geodesic.mathdoc.fr/articles/10.1017/S0017089519000065/
%R 10.1017/S0017089519000065
%F 10_1017_S0017089519000065