@article{10_21136_MB_2004_134103, author = {Danchev, Peter V.}, title = {Basic subgroups in commutative modular group rings}, journal = {Mathematica Bohemica}, pages = {79--90}, publisher = {mathdoc}, volume = {129}, number = {1}, year = {2004}, doi = {10.21136/MB.2004.134103}, mrnumber = {2048788}, zbl = {1057.16028}, language = {en}, url = {http://geodesic.mathdoc.fr/articles/10.21136/MB.2004.134103/} }