Quelques Commentaires Sur Le Plongement Des Difféomorphismes Locaux Du Plan. Paulo R. Rodrigues — 1982 Revista colombiana de matematicas
Dynamical connections and non-autonomous lagrangian systems Manuel De León; Paulo R. Rodrigues — 1988 Annales de la Faculté des sciences de Toulouse : Mathématiques
Comments On The Canonical Formalism Of Time-Dependent Higher Order Lagrangians. Paulo R. Rodrigues; Manuel de Leon de — 1987 Revista colombiana de matematicas
Higher order almost tangent geometry and non-autonomous Lagrangian dynamics de León, Manuel; Rodrigues, Paulo R. — 1987 Proceedings of the Winter School "Geometry and Physics"
Almost contact structures and time-dependent Lagrangians León, Manuel de; Rodrigues, Paulo R. — 1990 Portugaliae mathematica