@article{journals/jlp/Winter08,
	title = {Products in categories of relations.},
	author = {Michael Winter},
	journal = {J. Log. Algebr. Program.},
	number = {1},
	pages = {145-159},
	url = {http://dblp.uni-trier.de/db/journals/jlp/jlp76.html#Winter08},
	volume = {76},
	year = {2008},
	biburl = {http://www.bibsonomy.org/bibtex/25cee1555ff171bd8ae0a3e3e53511273/dblp},
	description = {dblp},
	ee = {http://dx.doi.org/10.1016/j.jlap.2007.10.003}, date = {2008-06-25},
	keywords = {dblp }
}