Dongsu Kim, Jang Soo Kim. A combinatorial approach to the power of 2 in the number of involutions. Journal of Combinatorial Theory, Series A, 117(8):1082-1094, 2010. [doi]
@article{KimK10-23,
title = {A combinatorial approach to the power of 2 in the number of involutions},
author = {Dongsu Kim and Jang Soo Kim},
year = {2010},
doi = {10.1016/j.jcta.2009.08.002},
url = {http://dx.doi.org/10.1016/j.jcta.2009.08.002},
tags = {systematic-approach},
researchr = {https://researchr.org/publication/KimK10-23},
cites = {0},
citedby = {0},
journal = {Journal of Combinatorial Theory, Series A},
volume = {117},
number = {8},
pages = {1082-1094},
}