Duality in vector optimization. III. Vector partially quasiconcave programming and vector fractional programming.

Tran Quoc Chien Duality in vector optimization. III. Vector partially quasiconcave programming and vector fractional programming. 458-472 1984 20 Kybernetika 6 http://www.kybernetika.cz/content/1984/6/458 db/journals/kybernetika/kybernetika20.html#Chien84b