@article{TMF_1976_26_3_a16,
     author = {Yu. G. Shondin},
     title = {On~a~property of solutions of the wave equation},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {425--428},
     publisher = {mathdoc},
     volume = {26},
     number = {3},
     year = {1976},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_1976_26_3_a16/}
}