ŻARNECKI, A. F.; MAŁEK, K.; SOKOŁOWSKI, M. Improving the Photometry of the Pi of the Sky System. Acta Polytechnica, [S. l.], v. 51, n. 1, 2011. DOI: 10.14311/1342. Disponível em: https://ojs.cvut.cz/ojs/index.php/ap/article/view/1342. Acesso em: 4 may. 2024.