1. Sergey Chaplygin. On the Occasion of his 150th Birthday

   Sergey Chaplygin Memorial Issue 05 October 2019 Pages: 447 - 449

2. Integrability of the n-dimensional Axially Symmetric Chaplygin Sphere

   • Luis C. García-Naranjo

   Sergey Chaplygin Memorial Issue 05 October 2019 Pages: 450 - 463

3. Periodic Billiards Within Conics in the Minkowski Plane and Akhiezer Polynomials

   • Anani Komla Adabrah
   • Vladimir Dragović
   • Milena Radnović

   Sergey Chaplygin Memorial Issue 05 October 2019 Pages: 464 - 501

4. On the Stability of the Regular Precession of an Asymmetric Gyroscope at a Second-order Resonance

   • Anatoly P. Markeev

   Sergey Chaplygin Memorial Issue 05 October 2019 Pages: 502 - 510

5. Nonholonomic Noetherian Symmetries and Integrals of the Routh Sphere and the Chaplygin Ball

   • Miguel D. Bustamante
   • Peter Lynch

   Sergey Chaplygin Memorial Issue 05 October 2019 Pages: 511 - 524

6. Reduction of a Hamilton — Jacobi Equation for Nonholonomic Systems

   • Oğul Esen
   • Victor M. Jiménez
   • Cristina Sardón

   Sergey Chaplygin Memorial Issue 05 October 2019 Pages: 525 - 559

7. Different Models of Rolling for a Robot Ball on a Plane as a Generalization of the Chaplygin Ball Problem

   • Ivan A. Bizyaev
   • Alexey V. Borisov
   • Ivan S. Mamaev

   Sergey Chaplygin Memorial Issue 05 October 2019 Pages: 560 - 582