ACHAK, A.; DAHER, R. .; SAFOUANE, N. Titchmarsh Theorems and K-Functionals for the Two-Sided Quaternion Fourier Transform. International Journal of Engineering and Applied Physics, [S. l.], v. 1, n. 1, p. 26–37, 2021. Disponível em: https://ijeap.org/ijeap/article/view/2. Acesso em: 19 apr. 2024.