1. A. G. Kochetkov and T. I. Vasyagina, Morfologiya 119 (3), 62 (2001).
2. N. G. Mal’tseva and T. G. Kuznetsova, Probl. Zdorov’ya Ekol. 2 (16), 113 (2008).
3. T. N. Rudenko, Candidate’s Dissertation in Biology (St.-Petersburg, 2004).
4. A. Ya. Tizul, Hypodynamia-Related Human Diseases and Health (Sov. Sport, Moscow, 2001).
5. A. I. Usov, T. I. Vasyagina, and I. G. Stel’nikova, Morfologiya 127 (2), 47 (2005).