%0 Journal Article %A Danchev, Peter V. %T Basic subgroups in commutative modular group rings %J Mathematica Bohemica %D 2004 %P 79-90 %V 129 %N 1 %U http://geodesic.mathdoc.fr/articles/10.21136/MB.2004.134103/ %R 10.21136/MB.2004.134103 %G en %F 10_21136_MB_2004_134103