[1] Cabras A.: 
The Ricci identity for general connections. Proceedings Conf. Diff. Geom. and Applications, 1995, Masaryk University, Brno 1996, 121-126. 
MR 1406331 | 
Zbl 0862.53023[2] Cabras A., Kolář I.: 
Connections on some functional bundles. Czechoslovak Math. J., 45(1995), 529-548. 
MR 1344519[3] Cabras A., Kolář I.: 
The universal connection of an arbitrary system. to appear in Annali di Matematica. 
MR 1746921[4] Ehresmann C.: 
Extension du calcul des jets aux jets non holonomes. CRAS Paris, 239 (1954), 1762-1764. 
MR 0066734 | 
Zbl 0057.15603[5] Frölicher A.: 
Smooth structures. Category theory 1981, LNM 962, Springer-Verlag, 1982, 69-81. 
MR 0682945[6] Jadczyk A., Modugno M.: Galilei general relativistic quantum mechanics. to appear.
[7] Kolář I.: 
Connections in 2-fibred manifolds. Arch. Math.(Brno), XVII(1981), 23-30. 
MR 0672485[8] Kolář I: 
Higher order absolute differentiation with respect to generalized connections. Differential Geometry, Banach Center Publications, Volume 12, Warszaw 1984, 153-162. 
MR 0961078[9] Kolář I.: 
An infinite dimensional motivation in higher order geometry. Proceedings Conf. Diff. Geom. and Applications, 1995, Masaryk University, Brno 1996, 151-159. 
MR 1406335[10] Kolář I., Michor P. W., Slovák J.: 
Natural operations in differential geometry. Springer-Verlag, 1993. 
MR 1202431[11] Mangiarotti L., Modugno M.: Connections and differential calculus on fibered manifolds. preprint.
[12] Modugno M.: 
New results on the theory of connections: systems, overconnections and prolongations. Differential Geometry and Its Applications, Proceedings, D. Reidel Publishing Company, 1987, 243-269. 
MR 0923352 | 
Zbl 0636.53039[13] Pradines J.: 
Représentation des jets non holonomes par des morphisms vectoriels doubles soudés. CRAS Paris, série A 278, 1974, 1523-1526. 
MR 0388432[14] Slovák J.: 
Smooth structures on fibre jet spaces. Czechoslovak Math. J., 36(1986), 358-375. 
MR 0847766