@article{10_4153_CJM_1969_016_4,
     author = {Antonelli, Peter L.},
     title = {Structure {Theory} for {Montgomery-Samelson} {Fiberings} between {Manifolds.} {I}},
     journal = {Canadian journal of mathematics},
     pages = {170--179},
     year = {1969},
     volume = {21},
     number = {1},
     doi = {10.4153/CJM-1969-016-4},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CJM-1969-016-4/}
}