@article{CMUC_1993__34_3_a21,
     author = {Metelli, Claudia},
     title = {On direct sums of $\Cal B^{(1)}$-groups},
     journal = {Commentationes Mathematicae Universitatis Carolinae},
     pages = {587--591},
     publisher = {mathdoc},
     volume = {34},
     number = {3},
     year = {1993},
     mrnumber = {1243091},
     zbl = {0787.20031},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/CMUC_1993__34_3_a21/}
}