@article{IM2_1992_38_2_a0,
     author = {V. K. Bulitko},
     title = {On ways of characterizing complete sets},
     journal = {Izvestiya. Mathematics },
     pages = {225--249},
     publisher = {mathdoc},
     volume = {38},
     number = {2},
     year = {1992},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/IM2_1992_38_2_a0/}
}