@article{Kleinberg1998,
	title = {Train tracks and zipping sequences for pseudo-Anosov braids},
	author = {Robert D. Kleinberg and William W. Menasco},
	journal = {Chaos, Solitons \& Fractals},
	month = {00},
	number = {4-5},
	pages = {793--809},
	url = {http://www.sciencedirect.com/science/article/B6TJ4-3TB061X-P/1/8d4c2b3df5f37abda3c1f465c6808008},
	volume = {9},
	year = {1998},
	biburl = {http://www.bibsonomy.org/bibtex/2f1fdfdbfa58465b0aba9f8a053f7f5dc/smicha},
	description = {Chaos, Solitons & Fractals},
	keywords = {imported }
}