@article{ARM_2007__43_1_a5,
     author = {Danchev, P. V.},
     title = {On countable extensions of primary abelian groups},
     journal = {Archivum mathematicum},
     pages = {61--66},
     publisher = {mathdoc},
     volume = {43},
     number = {1},
     year = {2007},
     mrnumber = {2310125},
     zbl = {1156.20044},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/ARM_2007__43_1_a5/}
}