Once more on the dynamics of the rattleback (comment on “Strange attractors in rattleback dynamics” by A V Borisov and I S Mamaev [ <i>Usp. Fiz. Nauk</i> <b>173</b> 407 (2003); <i>Phys. Usp.</i> <b>46</b> 393 (2003)] and “Nonlinear dynamics of the rattleback: a nonholonomic model” by A V Borisov, A O Kazakov, S P Kuznetsov [ <i>Usp. Fiz. Nauk</i> <b>184</b> 493 (2014); <i>Phys. Usp.</i> <b>57</b> 453 (2014)])Zhuravlev, V F · Physics-Uspekhi · 2015