KUREK, J.; MIKULSKI, W. M. Higher order jet prolongations type gauge natural bundles over vector bundles. Annales Universitatis Paedagogicae Cracoviensis Studia Mathematica, [S. l.], v. 4, p. 111–122, 2004. Disponível em: https://studmath.uken.krakow.pl/article/view/13313. Acesso em: 31 oct. 2026.