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@article{AM2_1989__38_1_137331, author = {J. Vukman}, title = {Symmetric bi-derivations on prime and semi-prime rings.}, journal = {Aequationes mathematicae}, pages = {245--254}, publisher = {mathdoc}, volume = {38}, number = {1}, year = {1989}, zbl = {0687.16031}, url = {http://geodesic.mathdoc.fr/item/AM2_1989__38_1_137331/} }
J. Vukman. Symmetric bi-derivations on prime and semi-prime rings.. Aequationes mathematicae, Tome 38 (1989) no. 1, pp. 245-254. http://geodesic.mathdoc.fr/item/AM2_1989__38_1_137331/