@article{10_1017_S0017089500008557, author = {Jain, S. K. and L\'opez-Permouth, S. R. and Singh, Surjeet}, title = {On a class of {QI-rings}}, journal = {Glasgow mathematical journal}, pages = {75--81}, year = {1992}, volume = {34}, number = {1}, doi = {10.1017/S0017089500008557}, url = {http://geodesic.mathdoc.fr/articles/10.1017/S0017089500008557/} }