@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/