@article {Cerdeira1996,
	title = {Ordered matroids and regular independence systems},
	journal = {Discrete Mathematics},
	volume = {154},
	number = {1-3},
	year = {1996},
	note = {n/a},
	pages = {255-261},
	abstract = {n/a},
	author = {Cerdeira, J.O. and Barcia, P.}
}
