VERMA, R. U. Hybrid (Φ,Ψ,ρ,ζ,θ)−invexity frameworks and efficiency conditions for multiobjective fractional programming problems. CUBO, A Mathematical Journal, [S. l.], v. 17, n. 1, p. 41–64, 2015. DOI: 10.4067/S0719-06462015000100004. Disponível em: https://cubo.ufro.cl/ojs/index.php/cubo/article/view/1150. Acesso em: 16 may. 2024.