@article{MS_1945__59_3_a0,
     author = {{\CYRI}.{\CYRG}. {\CYRP}{\cyre}{\cyrt}{\cyrr}{\cyro}{\cyrv}{\cyrs}{\cyrk}{\cyri}{\cyrishrt}},
     title = {On the diffusion of waves and the lacunas for hyperbolic equations},
     journal = {Matemati\v{c}eskij sbornik},
     pages = {289--370},
     publisher = {mathdoc},
     volume = {59},
     number = {3},
     year = {1945},
     zbl = {0061.21309},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/MS_1945__59_3_a0/}
}