Aiton, E.J. (1978). Kepler's path to the construction and rejection of his first oval orbit for Mars. Annals of Science. 35 (2): 173—190. doi:10.1080/00033797800200201. ISSN0003-3790.
Aiton, E.J. (1978). Kepler's path to the construction and rejection of his first oval orbit for Mars. Annals of Science. 35 (2): 173—190. doi:10.1080/00033797800200201. ISSN0003-3790.