PLANCK CONSTANT . EPH-International Journal of Applied Science, [S. l.], v. 3, n. 1, p. 1–5, 2017. DOI: 10.53555/eijas.v3i1.28. Disponível em: http://eijas.com/index.php/as/article/view/28. Acesso em: 14 sep. 2025.