@article{SJVM_2011_14_2_a4,
     author = {E. D. Moskalensky},
     title = {Formulas for setting a~location of the wavefront propagating in a~medium with power dependence of velocity on a~coordinate},
     journal = {Sibirskij \v{z}urnal vy\v{c}islitelʹnoj matematiki},
     pages = {169--178},
     publisher = {mathdoc},
     volume = {14},
     number = {2},
     year = {2011},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/SJVM_2011_14_2_a4/}
}