@article{EXMATH_1996_1996_1_a25,
     author = {Kol\'ar, Ivan},
     title = {Operaciones naturales sobre fibrados tangentes de orden superior.},
     journal = {Extracta mathematicae},
     pages = {106-115},
     publisher = {mathdoc},
     volume = {11},
     number = {1},
     year = {1996},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/EXMATH_1996_1996_1_a25/}
}