D. Borkovitz, F. K. Hwang. Multiplicative magic squares. Discrete Mathematics, 47:1-11, 1983. [doi]
@article{BorkovitzH83,
title = {Multiplicative magic squares},
author = {D. Borkovitz and F. K. Hwang},
year = {1983},
doi = {10.1016/0012-365X(83)90067-5},
url = {http://dx.doi.org/10.1016/0012-365X(83)90067-5},
researchr = {https://researchr.org/publication/BorkovitzH83},
cites = {0},
citedby = {0},
journal = {Discrete Mathematics},
volume = {47},
pages = {1-11},
}