UNAL, E.; GOKDOGAN, A.; CELIK, E. Solutions around a regular a singular point of a sequential conformable fractional differential equation. Kuwait Journal of Science, [S. l.], v. 44, n. 1, 2017. Disponível em: https://journals.ku.edu.kw/kjs/index.php/KJS/article/view/1184. Acesso em: 6 may. 2026.