@article{10_4153_CMB_1972_038_x,
     author = {Herzog, M. and Sch\"onheim, J.},
     title = {Group {Partition,} {Factorization} and the {Vector} {Covering} {Problem}},
     journal = {Canadian mathematical bulletin},
     pages = {207--214},
     year = {1972},
     volume = {15},
     number = {2},
     doi = {10.4153/CMB-1972-038-x},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CMB-1972-038-x/}
}