@article{Kreer1994,
	title = {Analytic birth--death processes: A Hilbert-space approach},
	author = {Markus Kreer},
	journal = {Stochastic Processes and their Applications},
	month = {Jan},
	number = {1},
	pages = {65--74},
	url = {http://www.sciencedirect.com/science/article/B6V1B-45FCSNN-54/1/87b3537286641525f80e47132f136498},
	volume = {49},
	year = {1994},
	biburl = {http://www.bibsonomy.org/bibtex/2369462cdcc252e5a977c4001d73bb09e/smicha},
	description = {Stochastic Processes and their Applications},
	keywords = {infinite matrices tridiagonal }
}