LENELLS, Jonatan. Stability for the periodic Camassa-Holm equation. Mathematica Scandinavica, Berkeley, CA, United States, v. 97, n. 2, p. 188–200, 2005. DOI: 10.7146/math.scand.a-14971. Disponível em: https://journals.msp.org/mscand/article/view/726. Acesso em: 24 jul. 2026.