@article{CMUC_1980__21_2_a8,
     author = {Kol\'a\v{r}, Ivan},
     title = {On the automorphisms of principal fibre bundles},
     journal = {Commentationes Mathematicae Universitatis Carolinae},
     pages = {309--312},
     publisher = {mathdoc},
     volume = {21},
     number = {2},
     year = {1980},
     mrnumber = {580685},
     zbl = {0415.58001},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/CMUC_1980__21_2_a8/}
}