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@article{MOMA_1981__92_178053, author = {George Szeto and Yuen-Fat Wong}, title = {On {Free} {Quadratic} {Extensions} of {Rings.}}, journal = {Monatshefte f\"ur Mathematik}, pages = {323--328}, publisher = {mathdoc}, volume = {92}, year = {1981}, zbl = {0461.16008}, url = {http://geodesic.mathdoc.fr/item/MOMA_1981__92_178053/} }
George Szeto; Yuen-Fat Wong. On Free Quadratic Extensions of Rings.. Monatshefte für Mathematik, Tome 92 (1981), pp. 323-328. http://geodesic.mathdoc.fr/item/MOMA_1981__92_178053/