@article{MMO_1974_31_a5,
     author = {L. R. Volevi\v{c}},
     title = {An energy method in the {Cauchy} problem for differential operators that are correct in the sense of {I.\,G.} {~{\CYRR}etrovski\u\i}},
     journal = {Trudy Moskovskogo matemati\v{c}eskogo ob\^{s}estva},
     pages = {147--187},
     publisher = {mathdoc},
     volume = {31},
     year = {1974},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MMO_1974_31_a5/}
}