KOZLOV, V.A.; MAZ'YA, V.; ROSSMANN, J. Conic singularities of solutions to problems in hydrodynamics of a viscous fluid with a free surface. Mathematica Scandinavica, Berkeley, CA, United States, v. 83, n. 1, p. 103–141, 1998. DOI: 10.7146/math.scand.a-13845. Disponível em: https://journals.msp.org/mscand/article/view/983. Acesso em: 25 jul. 2026.