@article{10_4153_CMB_1999_051_9,
     author = {Berrizbeitia, P. and Elliott, P. D. T. A.},
     title = {Product {Bases} for the {Rationals}},
     journal = {Canadian mathematical bulletin},
     pages = {441--444},
     year = {1999},
     volume = {42},
     number = {4},
     doi = {10.4153/CMB-1999-051-9},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CMB-1999-051-9/}
}