@article{10_4153_CMB_1998_012_5,
     author = {Kelarev, A. V.},
     title = {An {Answer} to a {Question} of {Kegel} on {Sums} of {Rings}},
     journal = {Canadian mathematical bulletin},
     pages = {79--80},
     year = {1998},
     volume = {41},
     number = {1},
     doi = {10.4153/CMB-1998-012-5},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CMB-1998-012-5/}
}