@article{DE_1998_34_9_a0,
     author = {D. Del Santo and E. Mitidieri},
     title = {Blow-up of solutions of a hyperbolic system: the critical case},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1155--1161},
     publisher = {mathdoc},
     volume = {34},
     number = {9},
     year = {1998},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1998_34_9_a0/}
}