@article{ARM_1998_34_3_a6,
     author = {Mikulski, W. M.},
     title = {Natural operators lifting functions to bundle functors on fibered manifolds},
     journal = {Archivum mathematicum},
     pages = {387--391},
     year = {1998},
     volume = {34},
     number = {3},
     mrnumber = {1662056},
     zbl = {0970.58003},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/ARM_1998_34_3_a6/}
}