Wei Chen, Wenhui Zhang. A direct construction of polynomial-size OBDD proof of pigeon hole problem. Inf. Process. Lett., 109(10):472-477, 2009. [doi]
@article{ChenZ09-4,
title = {A direct construction of polynomial-size OBDD proof of pigeon hole problem},
author = {Wei Chen and Wenhui Zhang},
year = {2009},
doi = {10.1016/j.ipl.2009.01.006},
url = {http://dx.doi.org/10.1016/j.ipl.2009.01.006},
researchr = {https://researchr.org/publication/ChenZ09-4},
cites = {0},
citedby = {0},
journal = {Inf. Process. Lett.},
volume = {109},
number = {10},
pages = {472-477},
}