@article{DAN_1991_320_3_a10,
     author = {A. Fasano and M. Primicherio and E. V. Radkevich},
     title = {Transition zone problems},
     journal = {Doklady Akademii Nauk},
     pages = {562--566},
     year = {1991},
     volume = {320},
     number = {3},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1991_320_3_a10/}
}