MLA

Andrei. Nonlinear Conjugate Gradient Methods for Unconstrained Optimization. Springer International Publishing, 2020.

APA

Andrei, A. (2020). Nonlinear Conjugate Gradient Methods for Unconstrained Optimization. Springer International Publishing.

Chicago

Andrei Nonlinear Conjugate Gradient Methods for Unconstrained Optimization. : Springer International Publishing, 2020.