MLA

Fengler, Matthias R. Semiparametric Modeling of Implied Volatility. Springer Berlin Heidelberg, 2005.

APA

Fengler, M. R. (2005). Semiparametric Modeling of Implied Volatility. Springer Berlin Heidelberg.

Chicago

Fengler, Matthias R. Semiparametric Modeling of Implied Volatility. : Springer Berlin Heidelberg, 2005.