[1]
P. Kaelo, S. Narayanan, and M. Thuto, “A modified quadratic hybridization of Polak-Ribiere-Polyak and Fletcher-Reeves conjugate gradient method for unconstrained optimization problems”, Int. J. Optim. Control, Theor. Appl. (IJOCTA), vol. 7, no. 2, pp. 177–185, Jul. 2017.