@article{Focke1984,
	title = {Zur existenz der maximum-likeliliood-schatzung beim faktorenmodell},
	author = {Joachim Focke},
	journal = {Statistics},
	number = {1},
	pages = {51--57},
	publisher = {Taylor \& Francis},
	url = {http://www.informaworld.com/10.1080/02331888408801746},
	volume = {15},
	year = {1984},
	biburl = {http://www.bibsonomy.org/bibtex/2cfd98f3ff54aa3cd0f9067998dcc2796/smicha},
	issn = {0233-1888},
	keywords = {imported }
}