Hans S. Witsenhausen. On Woodall s Interval Problem. Journal of Combinatorial Theory, Series A, 21(2):222-229, 1976.
@article{Witsenhausen76, title = {On Woodall s Interval Problem}, author = {Hans S. Witsenhausen}, year = {1976}, researchr = {https://researchr.org/publication/Witsenhausen76}, cites = {0}, citedby = {0}, journal = {Journal of Combinatorial Theory, Series A}, volume = {21}, number = {2}, pages = {222-229}, }