2 citations to https://www.mathnet.ru/rus/pmm9

1. Ivan Yu. Polekhin, “Precession of the Kovalevskaya and Goryachev – Chaplygin Tops”, Regul. Chaotic Dyn., 24:3 (2019), 281–297        
2. Alexey V. Borisov, Ivan S. Mamaev, “Symmetries and reduction in nonholonomic mechanics”, Regul. Chaot. Dyn., 20:5 (2015), 553