@article{Rud:76a,
  journal = {IEEE Trans. Computers},
  volume = {C--25},
  title = {Square roots and functional decompositions of {B}oolean functions},
  year = {1976},
  fjournal = {Institute of Electrical and Electronics Engineers. Transactions on
              Computers},
  pages = {528--532},
  number = {5},
  author = {Rudeanu, Sergiu},
}