Daniel Packer, Sophia White, Aaron Williams. A Paper on Pencils: A Pencil and Paper Puzzle - Pencils is NP-Complete. In Stephane Durocher, Shahin Kamali, editors, Proceedings of the 30th Canadian Conference on Computational Geometry, CCCG 2018, August 8-10, 2018, University of Manitoba, Winnipeg, Manitoba, Canada. pages 35-41, 2018. [doi]
@inproceedings{PackerWW18,
title = {A Paper on Pencils: A Pencil and Paper Puzzle - Pencils is NP-Complete},
author = {Daniel Packer and Sophia White and Aaron Williams},
year = {2018},
url = {http://www.cs.umanitoba.ca/~cccg2018/papers/session1B-p2.pdf},
researchr = {https://researchr.org/publication/PackerWW18},
cites = {0},
citedby = {0},
pages = {35-41},
booktitle = {Proceedings of the 30th Canadian Conference on Computational Geometry, CCCG 2018, August 8-10, 2018, University of Manitoba, Winnipeg, Manitoba, Canada},
editor = {Stephane Durocher and Shahin Kamali},
}