@article{DAN_1973_213_5_a13,
     author = {R. M. Garipov and V. B. Kardakov},
     title = {Cauchy problem for a wave equation with nonspatial initial manifold},
     journal = {Doklady Akademii Nauk},
     pages = {1047--1050},
     publisher = {mathdoc},
     volume = {213},
     number = {5},
     year = {1973},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1973_213_5_a13/}
}