@article{DE_1966_2_4_a5,
     author = {Z. I. Rekhlitskii},
     title = {Study of the exponential growth of solutions to a second order partial differential equation with retarded arguments},
     journal = {Differencialʹnye uravneni\^a},
     pages = {508--516},
     publisher = {mathdoc},
     volume = {2},
     number = {4},
     year = {1966},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1966_2_4_a5/}
}