TORNEHAVE, Hans. On the Fourier series of Stepanov almost periodic functions. MATHEMATICA SCANDINAVICA, [S. l.], v. 2, p. 236–241, 1954. DOI: 10.7146/math.scand.a-10410. Disponível em: https://tidsskrift.dk/math/article/view/10410. Acesso em: 14 aug. 2026.