Supersymmetric quantum mechanics and Painlevé IV equation. Bermúdez, David, C., David J.Fernández (2011) SIGMA. Symmetry, Integrability and Geometry: Methods and Applications [electronic only]
Sur certaines solutions particulières transcendantes des équations d'Einstein Bernard Léauté, Gilbert Marcilhacy (1979) Annales de l'I.H.P. Physique théorique
Symmetries in connection preserving deformations. Ormerod, Christopher M. (2011) SIGMA. Symmetry, Integrability and Geometry: Methods and Applications [electronic only]