@article{publication-3672,
	author={Kietz, J{\"o}rg-Uwe and Morik, Katharina},
	issn={0885-6125 (P) 1573-0565 (E)},
	journal={Machine Learning},
	number=2,
	pages={193-217},
	publisher={Springer},
	title={A polynomial approach to the constructive Induction of Structural           Knowledge},
	volume=14,
	year=1994,
}