BibTeX Export

@article{Authenticus:P-001-8HP,
	title = {{On presentations of semigroup rings.}},
	author = {M Petrich and PV Silva},
	journal = {Bollettino Della Unione Matematica Italiana},
	number = {1},
	pages = {127-142},
	publisher = {Unione Mat Ital},
	type = {Article},
	volume = {2B},
	year = {1999}
}