Cita APA (7a ed.)

Amster, P., & Mariani, M. (2007). Oscillating solutions of a nonlinear fourth order ordinary differential equation.

Cita Chicago Style (17a ed.)

Amster, P., y M.C Mariani. Oscillating Solutions of a Nonlinear Fourth Order Ordinary Differential Equation. 2007.

Cita MLA (8a ed.)

Amster, P., y M.C Mariani. Oscillating Solutions of a Nonlinear Fourth Order Ordinary Differential Equation. 2007.