@article{AUM_2014_68_2_a7,
     author = {Kurek, Jan and Mikulski, W{\l}odzimierz},
     title = {The natural transformations between r-tangent and r-cotangent bundles over {Riemannian} manifolds},
     journal = {Annales Universitatis Mariae Curie-Sk{\l}odowska. Mathematica },
     publisher = {mathdoc},
     volume = {68},
     number = {2},
     year = {2014},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/AUM_2014_68_2_a7/}
}