@article{Hoppe1977,
	title = {The critical Bienaym{\'e}-Galton-Watson process},
	author = {Fred M. Hoppe},
	journal = {Stochastic Processes and their Applications},
	month = {Feb},
	number = {1},
	pages = {57--66},
	url = {http://www.sciencedirect.com/science/article/B6V1B-45GVX6D-55/1/1de17e43818d1500acbce5c18488e61f},
	volume = {5},
	year = {1977},
	biburl = {http://www.bibsonomy.org/bibtex/2889ce3071e5ef03fb1b5c593c8748206/smicha},
	description = {Stochastic Processes and their Applications},
	keywords = {60F15 }
}