%0 Journal Article %A Danchev, P. V. %T On countable extensions of primary abelian groups %J Archivum mathematicum %D 2007 %P 61-66 %V 43 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/ARM_2007__43_1_a5/ %G en %F ARM_2007__43_1_a5