JENAB, Seyyed Mehdi Hosseini. Two-dimensional mapping of scientific production of nations in the fields of physics and astronomy. South African Journal of Science, [S. l.], v. 112, n. 5/6, p. 8, 2016. DOI: 10.17159/sajs.2016/20150119. Disponível em: https://sajs.co.za/article/view/4085. Acesso em: 25 apr. 2024.