Dennis Shasha. Upstart Puzzles: Take Your Seats. Communications of the ACM, 58(2):104, 2015. [doi]
@article{Shasha15, title = {Upstart Puzzles: Take Your Seats}, author = {Dennis Shasha}, year = {2015}, doi = {10.1145/2699303}, url = {http://doi.acm.org/10.1145/2699303}, researchr = {https://researchr.org/publication/Shasha15}, cites = {0}, citedby = {0}, journal = {Communications of the ACM}, volume = {58}, number = {2}, pages = {104}, }