@article{01247811,
title = {Crossed semimodules and Schreier internal categories in the category of monoids.},
journal = {Georgian Mathematical Journal},
volume = {5},
year = {1998},
pages = {575-581},
doi = {10.1023/B:GEOR.0000008133.94825.60},
zbl = {0915.18002},
language = {en},
url = {http://dml.mathdoc.fr/item/01247811}
}
Patchkoria, A. Crossed semimodules and Schreier internal categories in the category of monoids.. Georgian Mathematical Journal, Tome 5 (1998) pp. 575-581. doi : 10.1023/B:GEOR.0000008133.94825.60. http://gdmltest.u-ga.fr/item/01247811/