TY - JOUR AU - I. S. Kukles AU - L. B. Persidskaya TI - Those characteristics of a~system of three differential equations that tend to the origin along a~spiral and have infinite order of curvature JO - Izvestiâ vysših učebnyh zavedenij. Matematika PY - 1971 SP - 42 EP - 46 IS - 10 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/IVM_1971_10_a5/ LA - ru ID - IVM_1971_10_a5 ER -