Persons RUS  ENG    JOURNALS   PEOPLE   ORGANISATIONS   CONFERENCES   SEMINARS   VIDEO LIBRARY   PACKAGE AMSBIB     Chigur, I I https://www.mathnet.ru/eng/person151964 List of publications on Google Scholar Publications in Math-Net.Ru Citations 1991 1. I. I. Chigur, “On the stability of periodic motions of a rigid body between walls”, Vestnik Moskov. Univ. Ser. 1. Mat. Mekh., 1991, no. 5,  89–92       2. I. I. Chigur, “Branching billiards”, Vestnik Moskov. Univ. Ser. 1. Mat. Mekh., 1991, no. 1,  68–72