Curtis77'

@article{DBLP:journals/tc/Curtis77,
  author    = {H. Allen Curtis},
  title     = {Adjacency Table Method of Deriving Minimal Sums},
  journal   = {IEEE Trans. Computers},
  volume    = {26},
  number    = {11},
  year      = {1977},
  pages     = {1136-1141},
  ee        = {http://doi.ieeecomputersociety.org/10.1109/TC.1977.1674760},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}