UMA DIXIT; SARADA DEVI. Bounds of regular analogue of Lehmer problem. Malaya Journal of Matematik, India, v. 11, n. 04, p. 470–476, 2023. DOI: 10.26637/mjm1104/011. Disponível em: https://www.malayajournal.org/index.php/mjm/article/view/2135. Acesso em: 23 feb. 2025.