@article{10_4064_ap82_2_6,
     author = {W{\l}odzimierz M. Mikulski},
     title = {Natural operators lifting linear vector fields
  from a vector bundle to its $r$-jet prolongations},
     journal = {Annales Polonici Mathematici},
     pages = {155--170},
     publisher = {mathdoc},
     volume = {82},
     number = {2},
     year = {2003},
     doi = {10.4064/ap82-2-6},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/ap82-2-6/}
}