@inproceedings{poli1999smooth,
  author={Poli, R. and Page, J. and Langdon, W.B.},
  title={Smooth uniform crossover, sub-machine code GP and demes: A recipe for solving high-order boolean parity problems},
  booktitle={Proceedings of the Genetic and Evolutionary Computation Conference},
  year={1999},
  volume={2},
  pages={1162--1169}
}