@article{GDZPPN002430096, title = {Syzygies and Ext.}, journal = {Mathematische Zeitschrift}, volume = {185}, year = {1984}, pages = {279-282}, url = {http://dml.mathdoc.fr/item/GDZPPN002430096} }
Jothilingam, P. Syzygies and Ext.. Mathematische Zeitschrift, Tome 185 (1984) pp. 279-282. http://gdmltest.u-ga.fr/item/GDZPPN002430096/