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 17 (1981), no. 9, 1621–1629; MR 83d:58052] JO - Differencialʹnye uravneniâ PY - 1983 SP - 729 VL - 19 IS - 4 UR - http://geodesic.mathdoc.fr/item/DE_1983_19_4_a34/ LA - ru ID - DE_1983_19_4_a34 ER -