1. H. Lamb, Hydrodynamics (Dover Publ., New York, 1945; OGIZ, Moscow, 1947).
2. G. R. Kirchhoff, Vorlesungen Uber Mathematische Physik. Mechanik (Teubner, Leipzig, 1876; Iz-vo AN SSSR, Moscow, 1962).
3. A. Clebsch, “Über die Bewegung eines Körpers in einer Flüssigkeit,” Math. Ann. 3, 238–262 (1871).
4. A. V. Borisov and I. S. Mamaev, “Dynamics of Solids,” in Regular and Chaotic Dynamics (NITs, Izhevsk, 2001) [in Russian].
5. V. V. Sokolov, “A New Integrable Case for the Kirchhoff Equation,” Teor. Math. Fiz. 129(1) 31–37 (2001) [Theor. Math. Phys. (Engl. Trans.) 129(1), 1335-1340(2001)].