@inproceedings{GKM08,
author = {A. Genitrini and J. Kozik and G. Matecki},
title = {On the density and the structure of the Peirce-like formulae},
pages = {461--474},
year = {2008},
month = {September},
addres = {Blaubeuren, Allemagne},
howpublished = {DMTCS},
booktitle = {5th Colloquium on Mathematics and Computer Science : Algorithms, Trees, Combinatorics and Probabilities},
url = {http://www.dmtcs.org/dmtcs-ojs/index.php/proceedings/article/view/dmAI0131}
}