RAMESH, V. On the Face of the Sky for June and July. The Journal of the Indian Mathematical Society, [S. l.], v. 3, n. 3, p. 117–119, 1911. DOI: 10.18311/jims/1911/17813. Disponível em: https://www.informaticsjournals.com/index.php/jims/article/view/17813. Acesso em: 6 may. 2024.