@article{DE_1970_6_4_a14,
     author = {E. K. Isakova},
     title = {The principle of limiting amplitude for the {Cauchy--Poisson} {problem.~II}},
     journal = {Differencialʹnye uravneni\^a},
     pages = {721--730},
     publisher = {mathdoc},
     volume = {6},
     number = {4},
     year = {1970},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1970_6_4_a14/}
}