@article{DAN_1974_219_1_a17,
     author = {S. D. Vinogradov and A. V. Nikolaev and P. A. Troitskii},
     title = {Ultrasonic seismic holography},
     journal = {Doklady Akademii Nauk},
     pages = {81--83},
     publisher = {mathdoc},
     volume = {219},
     number = {1},
     year = {1974},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1974_219_1_a17/}
}