MLA

DiBenedetto, Emmanuele, et al. Harnack's Inequality for Degenerate and Singular Parabolic Equations. Springer New York, 2012.

APA

DiBenedetto, E., Gianazza, U., Vespri, V., & Gianazza, U. Pietro. (2012). Harnack's Inequality for Degenerate and Singular Parabolic Equations. Springer New York.

Chicago

DiBenedetto, Emmanuele, Ugo Gianazza, Vincenzo Vespri, and Ugo Pietro Gianazza. Harnack's Inequality for Degenerate and Singular Parabolic Equations. : Springer New York, 2012.