APA (7th ed.) Citation

Santos, S. P. S., Martins, N., & Torres, D. F. M. (2016). Higher-order variational problems of Herglotz type.

Chicago Style (17th ed.) Citation

Santos, S. P. S., N. Martins, and D. F. M. Torres. Higher-order Variational Problems of Herglotz Type. 2016.

MLA (8th ed.) Citation

Santos, S. P. S., et al. Higher-order Variational Problems of Herglotz Type. 2016.