@article{ZVMMF_1998_38_9_a11,
     author = {A. B. Vasil'eva and A. P. Petrov and A. A. Plotnicov},
     title = {On the theory of alternating contrast structures},
     journal = {\v{Z}urnal vy\v{c}islitelʹnoj matematiki i matemati\v{c}eskoj fiziki},
     pages = {1534--1543},
     year = {1998},
     volume = {38},
     number = {9},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZVMMF_1998_38_9_a11/}
}