Dwight Duffus, Bill Sands. Splitting Numbers of Grids. Electr. J. Comb., 12, 2005. [doi]
@article{DuffusS05:0, title = {Splitting Numbers of Grids}, author = {Dwight Duffus and Bill Sands}, year = {2005}, url = {http://www.combinatorics.org/Volume_12/Abstracts/v12i1r17.html}, researchr = {https://researchr.org/publication/DuffusS05%3A0}, cites = {0}, citedby = {0}, journal = {Electr. J. Comb.}, volume = {12}, }