Andrzej J. Maciejewski, Maria Przybylska, “Global Properties of Kovalevskaya Exponents”, Regul. Chaotic Dyn., 22:7 (2017), 840–850
Valery V. Kozlov, Stanislav D. Furta, Springer Monographs in Mathematics, Asymptotic Solutions of Strongly Nonlinear Systems of Differential Equations, 2013, 131
Borisov, AV, “Necessary and sufficient conditions for the polynomial integrability of generalized Toda chains”, Doklady Mathematics, 69:1 (2004), 131
К. В. Емельянов, А. В. Цыгвинцев, “Показатели Ковалевской систем с экспоненциальным взаимодействием”, Матем. сб., 191:10 (2000), 39–50 ; K. V. Emel'yanov, A. V. Tsygvintsev, “Kovalevskaya exponents of systems with exponential interaction”, Sb. Math., 191:10 (2000), 1459–1469
С. Т. Садэтов, “О резонансах на показатели Ковалевской”, Матем. заметки, 54:4 (1993), 152–153 ; S. T. Sadetov, “On resonances on the Kovalevskaya exponents”, Math. Notes, 54:4 (1993), 1081–1082