[1]
Jayswal, A. et al. 2013. On nonsmooth multiobjective fractional programming problems involving (p, r)− ρ −(η ,θ)- invex functions. Yugoslav Journal of Operations Research. 23, 3 (Oct. 2013), 367–386. DOI:https://doi.org/10.2298/YJOR130131012J.