%0 Journal Article %A Montesinos Amilibia, José María %T Open 3-manifolds as 3-fold branched coverings. %D 2001 %@ 1578-7303 %U https://hdl.handle.net/20.500.14352/58648 %X It is announced that the Freudenthal compactification of an open, connected, oriented 3-manifold is a 3-fold branched covering of S 3 . The branching set is as nice as can be expected. Some applications are given. %~