@inproceedings{ILPC-1984-StepankovaS84,
	author        = "Olga Stepánková and Petr Stepánek",
	booktitle     = "{Proceedings of the Second International Logic Programming Conference}",
	pages         = "53--63",
	publisher     = "{Uppsala University}",
	title         = "{Computation Trees and Transformations of Logic Programs}",
	year          = 1984,
}