@inproceedings{ICML-1994-RoscaB,
	author        = "Justinian P. Rosca and Dana H. Ballard",
	booktitle     = "{Proceedings of the 11th International Conference on Machine Learning}",
	isbn          = "1-55860-335-2",
	pages         = "251--258",
	publisher     = "{Morgan Kaufmann}",
	title         = "{Hierarchical Self-Organization in Genetic programming}",
	year          = 1994,
}