@article{CMUC_1974__15_3_a0,
     author = {Gardner, Barry J.},
     title = {Rings on completely decomposable torsion-free {Abelian} groups},
     journal = {Commentationes Mathematicae Universitatis Carolinae},
     pages = {381--392},
     publisher = {mathdoc},
     volume = {15},
     number = {3},
     year = {1974},
     mrnumber = {0360868},
     zbl = {0306.20059},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/CMUC_1974__15_3_a0/}
}