@book{9305,
	author = {Helfert, Erich A.},
	title = {Techniques of financial analysis : a guide to value creation / Erich A. Helfert.- 11th ed.},
	publisher = {Boston : McGraw-Hill/Irwin, c2003.},
	address = {Boston : McGraw-Hill/Irwin, c2003.},
	edition = {11th ed.}
}