@article{MAN_1986__274_164086,
     author = {H. Pedersen},
     title = {Einstein {Metrics,} {Spinning} {Top} {Motions} and {Monopoles.}},
     journal = {Mathematische Annalen},
     pages = {35--60},
     publisher = {mathdoc},
     volume = {274},
     year = {1986},
     zbl = {0566.53058},
     url = {http://geodesic.mathdoc.fr/item/MAN_1986__274_164086/}
}