APA citáció

Graef John R., Qian Chuanxi, & Yang Bo. (2004). Multiple positive solutions of a boundary value problem for ordinary differential equations.

Chicago Style (17th ed.) Citation

Graef John R., Qian Chuanxi, and Yang Bo. Multiple Positive Solutions of a Boundary Value Problem for Ordinary Differential Equations. 2004.

MLA idézés

Graef John R., et al. Multiple Positive Solutions of a Boundary Value Problem for Ordinary Differential Equations. 2004.