ERSTENIUK, Yaroslav; GASYUK, Ivan; BORYSCHAK, Anna; YAKUBOVSKYI, Petro. Methodology of Problems Creation and Selection for Astronomy Olympiads on Example of Tasks on the Topic of Kepler’s Laws . Journal of Vasyl Stefanyk Precarpathian National University, [S. l.], v. 7, n. 1, p. 156–165, 2020. DOI: 10.15330/jpnu.7.1.156-165. Disponível em: https://ktipe.pnu.edu.ua/index.php/jpnu/article/view/3629. Acesso em: 21 nov. 2024.