@article{Pa76,
AUTHOR = {Paul, W.J.},
TITLE = {Realizing Boolean Functions on Disjoint Sets of Variables},
VOLUME = {2},
YEAR = {1976},
PAGES = {383--396},
SERIES = {Theoretical Computer Science 1976},
EE = {http://dx.doi.org/10.1016/0304-3975(76)90089-X},
}