@article{MV_1977_29_1_a37,
     author = {C. Das and J. Parida},
     title = {A duality theorem for complex nonlinear programming},
     journal = {Matemati\v{c}ki vesnik},
     pages = {327 },
     year = {1977},
     volume = {29},
     number = {1},
     url = {http://geodesic.mathdoc.fr/item/MV_1977_29_1_a37/}
}