TY - JOUR AU - S. Yu. Pilyugin TI - Letter to the editors: ``Boundary of the attracting set of a periodic Axiom A-system'' [Differentsial'nye Uravneniya \textbf{17} (1981), no.~9, 1621--1629; MR 83d:58052] JO - Differencialʹnye uravneniâ PY - 1983 SP - 729 VL - 19 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DE_1983_19_4_a34/ LA - ru ID - DE_1983_19_4_a34 ER -