@inproceedings{ILPC-1982-ErikssonJT82,
	author        = "Agneta Eriksson and Anna-Lena Johansson and Sten-Åke Tärnlund",
	booktitle     = "{Proceedings of the First International Logic Programming Conference}",
	pages         = "146--151",
	publisher     = "{ADDP-GIA}",
	title         = "{Towards a Derivation Editor}",
	year          = 1982,
}