Lisa Hellerstein, Devorah Kletenik. On the gap between ess(f) and cnf_size(f). Discrete Applied Mathematics, 161(1-2):19-27, 2013. [doi]
@article{HellersteinK13,
title = {On the gap between ess(f) and cnf_size(f)},
author = {Lisa Hellerstein and Devorah Kletenik},
year = {2013},
doi = {10.1016/j.dam.2012.07.004},
url = {http://dx.doi.org/10.1016/j.dam.2012.07.004},
researchr = {https://researchr.org/publication/HellersteinK13},
cites = {0},
citedby = {0},
journal = {Discrete Applied Mathematics},
volume = {161},
number = {1-2},
pages = {19-27},
}