Edward A. Bender, Zhicheng Gao, L. Bruce Richmond. Submaps of maps. I. General 0-1 laws. Journal of Combinatorial Theory, Series A, 55(1):104-117, 1992. [doi]
@article{BenderGR92,
title = {Submaps of maps. I. General 0-1 laws},
author = {Edward A. Bender and Zhicheng Gao and L. Bruce Richmond},
year = {1992},
doi = {10.1016/0095-8956(92)90034-U},
url = {http://dx.doi.org/10.1016/0095-8956(92)90034-U},
researchr = {https://researchr.org/publication/BenderGR92},
cites = {0},
citedby = {0},
journal = {Journal of Combinatorial Theory, Series A},
volume = {55},
number = {1},
pages = {104-117},
}