@article{Andersson1991,
	title = {Lattice-ordered conditional independence models for missing data},
	author = {Steen A. Andersson and Michael D. Perlman},
	journal = {Statistics \& Probability Letters},
	month = {Dec},
	number = {6},
	pages = {465--486},
	url = {http://www.sciencedirect.com/science/article/B6V1D-45DB1PW-84/1/1f58c65bbb62d03b0b6e6e106b18adbf},
	volume = {12},
	year = {1991},
	biburl = {http://www.bibsonomy.org/bibtex/20b427ebd2ed5ccb758146a7b1795cb46/smicha},
	keywords = {imported }
}