@article{10_37236_457,
     author = {Javier Cilleruelo and Florian Luca},
     title = {On multiplicative magic squares},
     journal = {The electronic journal of combinatorics},
     year = {2010},
     volume = {17},
     doi = {10.37236/457},
     zbl = {1219.11146},
     url = {http://geodesic.mathdoc.fr/articles/10.37236/457/}
}