@article{ARM_2005__41_1_a0,
     author = {Mikulski, W. M.},
     title = {Non-existence of natural operators transforming connections on $Y \to M$ into connections on $FY\to Y$},
     journal = {Archivum mathematicum},
     pages = {1--4},
     publisher = {mathdoc},
     volume = {41},
     number = {1},
     year = {2005},
     mrnumber = {2142138},
     zbl = {1112.58006},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/ARM_2005__41_1_a0/}
}