TY - JOUR AU - V. R. Petukhov TI - Questions concerning the qualitative study of the solutions of equations with ``maxima'' JO - Izvestiâ vysših učebnyh zavedenij. Matematika PY - 1964 SP - 116 EP - 119 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/IVM_1964_3_a16/ LA - ru ID - IVM_1964_3_a16 ER -