Arthur W. Chou, Ker-I Ko. Some complexity issues on the simply connected regions of the two-dimensional plane. In STOC. pages 1-10, 1993. [doi]
@inproceedings{ChouK93, title = {Some complexity issues on the simply connected regions of the two-dimensional plane}, author = {Arthur W. Chou and Ker-I Ko}, year = {1993}, doi = {10.1145/167088.167093}, url = {http://doi.acm.org/10.1145/167088.167093}, researchr = {https://researchr.org/publication/ChouK93}, cites = {0}, citedby = {0}, pages = {1-10}, booktitle = {STOC}, }