1. V. V. Golubev,Lectures on Integration of the Equations of Motions of a Rigid Body about a Fixed Point(State Publishing House of Theoretical Technical Literature, Moscow, 1953) (English translation published by the Israel Program for Scientific Literature in 1960).
2. L. Euler, “Theoria motus corporum solidorum seu rigidorum ex primis nostrae cognitionis principiis stabilita et ad omnes motus, qui in huiusmodi corpora cadere possunt, accommodata,” Rostochii et Gryphiswaldiae: Litteris et Impensis A. F. Röse, 1765.
3. Sur la rotation d'un corps. Extrait d'une lettre adressée à l'académie des sciences de Paris.