@article{10_4153_CJM_1970_061_5,
     author = {Irwin, John M. and O'Neill, John D.},
     title = {On {Direct} {Products} of {Abelian} {Groups}},
     journal = {Canadian journal of mathematics},
     pages = {525--544},
     year = {1970},
     volume = {22},
     number = {3},
     doi = {10.4153/CJM-1970-061-5},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CJM-1970-061-5/}
}