@article{YJOR_1992_2_1_a2,
     author = {Dimiter Filev and Plamen Angelov},
     title = {Optimal {Control} in a {Fuzzy} {Environment}},
     journal = {Yugoslav journal of operations research},
     pages = {33 },
     year = {1992},
     volume = {2},
     number = {1},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/YJOR_1992_2_1_a2/}
}