David Kelly, Ivan Rival. Certain Partially Ordered Sets of Dimension Three. Journal of Combinatorial Theory, Series A, 18(2):239-242, 1975.
@article{KellyR75, title = {Certain Partially Ordered Sets of Dimension Three}, author = {David Kelly and Ivan Rival}, year = {1975}, researchr = {https://researchr.org/publication/KellyR75}, cites = {0}, citedby = {0}, journal = {Journal of Combinatorial Theory, Series A}, volume = {18}, number = {2}, pages = {239-242}, }