Dennis Shasha. Upstart puzzles. Communications of the ACM, 59(4):96, 2016. [doi]
@article{Shasha16a,
title = {Upstart puzzles},
author = {Dennis Shasha},
year = {2016},
doi = {10.1145/2892635},
url = {http://doi.acm.org/10.1145/2892635},
researchr = {https://researchr.org/publication/Shasha16a},
cites = {0},
citedby = {0},
journal = {Communications of the ACM},
volume = {59},
number = {4},
pages = {96},
}