%0 Journal Article %A Fomin, Alexander A. %T A matrix description for torsion free abelian groups of finite rank %J Rendiconti del Seminario Matematico della Università di Padova %D 2020 %P 115-128 %V 144 %U http://www.numdam.org/articles/10.4171/rsmup/60/ %R 10.4171/rsmup/60 %G en %F RSMUP_2020__144__115_0