@article{CC_2009_38_4A_a15,
     author = {Donchev, Tzanko and Farkhi, Elza},
     title = {On the theorem of {Filippov-Pli\'s} and some applications},
     journal = {Control and Cybernetics},
     pages = {1251--1271},
     publisher = {mathdoc},
     volume = {38},
     number = {4A},
     year = {2009},
     zbl = {1248.34014},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/CC_2009_38_4A_a15/}
}