- Francisco Guil, Manuel Mañas, “Darboux transformations for the Davey—Stewartson equations”, Physics Letters A, 217, № 1, 1996, 1
- Francisco Guil, Manuel Mañas, “The Dirac equation and integrable systems of KP type”, J. Phys. A: Math. Gen., 29, № 3, 1996, 641