Thesis

Usanin V.S. Long-term models of comet Encke's motion. Cand. sci. (phys.–math.) dissertation. Kazan: Kazan (Volga region) Federal University, 2012. 174 p. + CD. (In Russian) http://shelly.kpfu.ru/e-ksu/docs/F1479929783/Dissertaciya.pdf

Appendix 2. https://yadi.sk/d/AOQzEHUC3LgbGm

Usanin V.S. Long-term models of comet Encke's motion. Extended abstract of cand. sci. (phys.–math.) dissertation. Saint Petersburg: Saint Petersburg State University, 2012. 19 p. (In Russian) http://shelly.kpfu.ru/e-ksu/docs/F1808529275/avtoref_Usanin.pdf, https://disser.spbu.ru/disser/{zashiti_disser___id}/avtoref-Usanin.pdf, http://dlib.rsl.ru/rsl01005000000/rsl01005055000/rsl01005055069/rsl01005055069.pdf, http://xn--90ax2c.xn--p1ai/local/tools/exalead/getFiles.php?book_id=000199_000009_005055069&name=%20%C4%EE%EB%E3%EE%F1%F0%EE%F7%ED%FB%E5%20%EC%EE%E4%E5%EB%E8%20%E4%E2%E8%E6%E5%ED%E8%FF%20%EA%EE%EC%E5%F2%FB%20%DD%ED%EA%E5, https://vivaldi.nlr.ru/bd000343453/view/, http://dspace.kpfu.ru/xmlui/bitstream/handle/net/113282/0-798138.pdf