APA (7th ed.) Citation
Gasull, A., Giné, J., & Valls, C. (2017). Center Problem for trigonometric Liénard systems.
Chicago Style (17th ed.) Citation
Gasull, Armengol|||0000-0002-1719-8231, Jaume|||0000-0001-7109-2553 Giné, and Clàudia|||0000-0001-8279-1229 Valls. Center Problem for Trigonometric Liénard Systems. 2017.
MLA (9th ed.) Citation
Gasull, Armengol|||0000-0002-1719-8231, et al. Center Problem for Trigonometric Liénard Systems. 2017.
Warning: These citations may not always be 100% accurate.