@article{MAN_1981__256_163525,
     author = {Taizo Kanenobu},
     title = {A {Note} on 2-fold {Branched} {Covering} {Spaces} of  {S3.}},
     journal = {Mathematische Annalen},
     pages = {449--452},
     publisher = {mathdoc},
     volume = {256},
     year = {1981},
     zbl = {0451.57002},
     url = {http://geodesic.mathdoc.fr/item/MAN_1981__256_163525/}
}