@inproceedings{Pa75,
AUTHOR = {Paul, W.J.},
TITLE = {A 2.5 N-lower Bound on the Combinational Complexity of Boolean Functions},
YEAR = {1975},
PAGES = {27--36},
BOOKTITLE = {Proc. 7th ACM-STOC 1975},
EE = {http://doi.acm.org/10.1145/800116.803750},
}