[1]
Verma, R.U. 2015. Hybrid (Φ,Ψ,ρ,ζ,θ)−invexity frameworks and efficiency conditions for multiobjective fractional programming problems. CUBO, A Mathematical Journal. 17, 1 (Mar. 2015), 41–64. DOI:https://doi.org/10.4067/S0719-06462015000100004.