CHATTERJEE, Sandip; MUKHERJEE, Rathindranath. On invex programming problem in Hilbert spaces. Yugoslav Journal of Operations Research, [S. l.], v. 25, n. 3, p. 379–385, 2015. DOI: 10.2298/YJOR141015010C. Disponível em: https://yujor.erc.fon.bg.ac.rs/index.php/yujor/article/view/445. Acesso em: 26 aug. 2025.