@article{KYB_1987__23_5_a2,
     author = {Chien, Tran Quoc},
     title = {Unification of the abstract duality scheme},
     journal = {Kybernetika},
     pages = {365--369},
     publisher = {mathdoc},
     volume = {23},
     number = {5},
     year = {1987},
     mrnumber = {915688},
     zbl = {0641.90089},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/KYB_1987__23_5_a2/}
}