Estevez, P. G. Et Al. 2011. Solutions of a Class of Duffing Oscillators with Variable Coefficients. INTERNATIONAL JOURNAL OF THEORETICAL PHYSICS , vol.50, no.7 , 2046-2056.

Estevez, P. G., KURU, Ş., Negro, J., & Nieto, L. M., (2011). Solutions of a Class of Duffing Oscillators with Variable Coefficients. INTERNATIONAL JOURNAL OF THEORETICAL PHYSICS , vol.50, no.7, 2046-2056.

Estevez, Pilar Et Al. "Solutions of a Class of Duffing Oscillators with Variable Coefficients," INTERNATIONAL JOURNAL OF THEORETICAL PHYSICS , vol.50, no.7, 2046-2056, 2011

Estevez, Pilar G. Et Al. "Solutions of a Class of Duffing Oscillators with Variable Coefficients." INTERNATIONAL JOURNAL OF THEORETICAL PHYSICS , vol.50, no.7, pp.2046-2056, 2011

Estevez, P. G. Et Al. (2011) . "Solutions of a Class of Duffing Oscillators with Variable Coefficients." INTERNATIONAL JOURNAL OF THEORETICAL PHYSICS , vol.50, no.7, pp.2046-2056.

@article{article, author={Pilar G. Estevez Et Al. }, title={Solutions of a Class of Duffing Oscillators with Variable Coefficients}, journal={INTERNATIONAL JOURNAL OF THEORETICAL PHYSICS}, year=2011, pages={2046-2056} }