@article{10_1017_S0017089500007254, author = {Pardo, Jos\'e L. G\'omez and Gonz\'alez, Nieves Rodr{\'\i}guez}, title = {QF-3 endomorphism rings of {\ensuremath{\Sigma}-quasi-projective} modules{\textdagger}}, journal = {Glasgow mathematical journal}, pages = {215--220}, year = {1988}, volume = {30}, number = {2}, doi = {10.1017/S0017089500007254}, url = {http://geodesic.mathdoc.fr/articles/10.1017/S0017089500007254/} }