YAREMKO, Oleg; MOGILEVA, Elena Sergeevna. The Cauchy problem and Hadamard’s example. Global Journal of Mathematical Analysis, [S. l.], v. 1, n. 2, p. 48–52, 2013. DOI: 10.14419/gjma.v1i2.876. Disponível em: https://sciencepubco.com/index.php/GJMA/article/view/876.. Acesso em: 9 apr. 2025.