@article{GDZPPN001258370, title = {Skew-monoidal structures on simple rings with several objects.}, journal = {Semigroup forum}, volume = {33}, year = {1986}, pages = {69-88}, zbl = {0611.18005}, url = {http://dml.mathdoc.fr/item/GDZPPN001258370} }
Hoehnke, H.J. Skew-monoidal structures on simple rings with several objects.. Semigroup forum, Tome 33 (1986) pp. 69-88. http://gdmltest.u-ga.fr/item/GDZPPN001258370/