CROWDY, D. Explicit solution of a class of Riemann–Hilbert problems. Annales Universitatis Paedagogicae Cracoviensis Studia Mathematica, [S. l.], v. 8, p. 5–18, 2009. Disponível em: https://studmath.uken.krakow.pl/article/view/13255. Acesso em: 31 oct. 2026.