APA citáció

Boucherif Abdelkader & Henderson Johnny. (2006). Positive solutions of second order boundary value problems with changing signs Carathéodory nonlinearities.

Chicago Style (17th ed.) Citation

Boucherif Abdelkader and Henderson Johnny. Positive Solutions of Second Order Boundary Value Problems with Changing Signs Carathéodory Nonlinearities. 2006.

MLA idézés

Boucherif Abdelkader and Henderson Johnny. Positive Solutions of Second Order Boundary Value Problems with Changing Signs Carathéodory Nonlinearities. 2006.