@article{FORUM_1994__6_3_141730,
     author = {Paul Hill and Charles Megibben},
     title = {Uniqueness theorems for global mixed groups.},
     journal = {Forum mathematicum},
     pages = {139--152},
     publisher = {mathdoc},
     volume = {6},
     number = {3},
     year = {1994},
     zbl = {0803.20036},
     url = {http://geodesic.mathdoc.fr/item/FORUM_1994__6_3_141730/}
}