(NgIPERBOLI^ESKIE DIFFERENCIALXNYE URAWNENIQ (B:s (NpEREWOD S ANGLIJSKOGO (B/s - (NlERE(B, (Nv(B.s; (NiBRAGIMOW(B, (Nn(B. (Nh(B.s ((NmOSKWA (B:s (NnAUKA(B. (NgL(B. (NRED(B. (NFIZ(B.-(NMAT(B. (NLIT(B.,s, 1984)
Keywords: (NfUNKCII GIPERBOLI^ESKIEs