@article{GDZPPN001254731,
title = {Division Semirings with 1 + 1 = 1 .},
journal = {Semigroup forum},
volume = {23},
year = {1981},
pages = {181-188},
zbl = {0467.16032},
url = {http://dml.mathdoc.fr/item/GDZPPN001254731}
}
Hutchins, H.C. Division Semirings with 1 + 1 = 1 .. Semigroup forum, Tome 23 (1981) pp. 181-188. http://gdmltest.u-ga.fr/item/GDZPPN001254731/