Shevchenko, Ivan I. (2017). "The Lidov-Kozai Effect - Applications in Exoplanet Research and Dynamical Astronomy". Astrophysics and Space Science Library. Cham: Springer International Publishing. p. 10. doi:10.1007/978-3-319-43522-0. ISBN978-3-319-43520-6. ISSN0067-0057.
Shevchenko, Ivan I. (2017). "The Lidov-Kozai Effect - Applications in Exoplanet Research and Dynamical Astronomy". Astrophysics and Space Science Library. Cham: Springer International Publishing. p. 10. doi:10.1007/978-3-319-43522-0. ISBN978-3-319-43520-6. ISSN0067-0057.