In this work, we prove that every closed, orientable 3-manifold M3 which is a two-fold covering of S3 branched over a link, has type six.
@article{urn:eudml:doc:44291,
title = {Two-fold branched coverings of S3 have type six.},
journal = {Revista Matem\'atica de la Universidad Complutense de Madrid},
volume = {5},
year = {1992},
pages = {235-254},
zbl = {0781.57010},
mrnumber = {MR1195082},
language = {en},
url = {http://dml.mathdoc.fr/item/urn:eudml:doc:44291}
}
Casali, Maria Rita. Two-fold branched coverings of S3 have type six.. Revista Matemática de la Universidad Complutense de Madrid, Tome 5 (1992) pp. 235-254. http://gdmltest.u-ga.fr/item/urn:eudml:doc:44291/