@article{AM2_1986__30_137120,
     author = {Steve Galovich and Jack Goldfeather},
     title = {Splittings of infinite abelian group.},
     journal = {Aequationes mathematicae},
     pages = {123--133},
     year = {1986},
     volume = {30},
     zbl = {0589.20035},
     url = {http://geodesic.mathdoc.fr/item/AM2_1986__30_137120/}
}