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- [2] THE CAUCHY-PROBLEM FOR NONSTRICTLY HYPERBOLIC-EQUATIONS MATHEMATICS OF THE USSR-SBORNIK, 1983, 120 (1-2): : 81 - 109
- [9] FEATURES OF THE SOLUTIONS OF HYPERBOLIC-EQUATIONS AND THE PROBLEM OF TWINS IN THE ASTRONOMY DOKLADY AKADEMII NAUK SSSR, 1981, 257 (04): : 849 - 852