HAO, Tian. Burnside’s Lemma and Its Applications in Combinatorics Problems. Highlights in Science, Engineering and Technology, [S. l.], v. 47, p. 126–130, 2023. DOI: 10.54097/hset.v47i.8175. Disponível em: https://drpress.org/ojs/index.php/HSET/article/view/8175. Acesso em: 7 jun. 2026.