%0 Journal Article %A Fuchs, L. %A Gräbe, P. %T Number of indecomposable summands in direct decompositions of torsion-free abelian groups %J Rendiconti del Seminario Matematico della Università di Padova %D 1975 %P 135-148 %V 53 %I Seminario Matematico of the University of Padua %U http://archive.numdam.org/item/RSMUP_1975__53__135_0/ %G en %F RSMUP_1975__53__135_0