MAP20080023416 Hamada, Mahmoud CAPM and option pricing with elliptically contoured distributions / Mahmoud Hamada, Emiliano A. VAldez En: The Journal of risk and insurance. - Nueva York : The American Risk and Insurance Association, 1964- = ISSN 0022-4367. - 01/06/2008 Tomo 75 Número 2 - 2008 I. Valdez, Emiliano A. .