@article{Hagan1999a,
	title = {Equivalent Black volatilities},
	author = {Patrick S. Hagan and Diana E. Woodward},
	journal = {Applied Mathematical Finance},
	number = {3},
	pages = {147--157},
	publisher = {Routledge},
	url = {http://www.informaworld.com/10.1080/135048699334500},
	volume = {6},
	year = {1999},
	biburl = {http://www.bibsonomy.org/bibtex/2457dc82d437061789d52819bf06aceb4/smicha},
	issn = {1350-486X},
	keywords = {imported }
}