@article{10_21136_MB_1992_125905,
     author = {Mikulski, W. M.},
     title = {Natural transformations transforming functions and vector fields to functions on some natural bundles},
     journal = {Mathematica Bohemica},
     pages = {217--223},
     publisher = {mathdoc},
     volume = {117},
     number = {2},
     year = {1992},
     doi = {10.21136/MB.1992.125905},
     mrnumber = {1165899},
     zbl = {0810.58004},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/MB.1992.125905/}
}