MISEVIČIUS, G. Asymptotic expansion of the characteristic function of the sum ∑φ(2^k t). Lithuanian Mathematical Journal, [S. l.], v. 12, n. 1, p. 184–193, 1972. DOI: 10.15388/LMJ.1972.21091. Disponível em: https://www.journals.vu.lt/LMJ/article/view/21091.. Acesso em: 7 may. 2024.