@inproceedings{TAPSOFT-1997-Nivat,
	author        = "Maurice Nivat",
	booktitle     = "{Proceedings of the Seventh International Joint Conference on Theory and Practice of Software Development}",
	doi           = "10.1007/BFb0030584",
	isbn          = "3-540-62781-2",
	pages         = "11--14",
	publisher     = "{Springer}",
	title         = "{New Challenges for Theoretical Computer Science}",
	year          = 1997,
}