%0 Journal Article
%A Hausen, Jutta
%A Johnson, Johnny A.
%T On the existence of projective and quasi-projective covers
%J Rendiconti del Seminario Matematico della Università di Padova
%D 1985
%P 49-54
%V 73
%I Seminario Matematico of the University of Padua
%U http://archive.numdam.org/item/RSMUP_1985__73__49_0/
%G en
%F RSMUP_1985__73__49_0