@inproceedings{HT-ECHT-1994-AmannSR,
	author        = "Bernd Amann and Michel Scholl and Antoine Rizk",
	booktitle     = "{Proceedings of the European Conference on Hypertext Technology}",
	cdrom         = "ECHT1994/P198.pdf",
	doi           = "10.1145/192757.192831",
	isbn          = "0-89791-640-9",
	pages         = "198--205",
	publisher     = "{ACM}",
	title         = "{Querying Typed Hypertexts in Multicard/O2}",
	year          = 1994,
}