@inproceedings{HT-ECHT-1992-BernsteinJL,
	author        = "Mark Bernstein and Michael Joyce and David Levine",
	booktitle     = "{Proceedings of the European Conference on Hypertext Technology}",
	cdrom         = "ECHT1992/P161.pdf",
	doi           = "10.1145/168466.168517",
	isbn          = "0-89791-547-X",
	pages         = "161--170",
	publisher     = "{ACM}",
	title         = "{Contours of Constructive Hypertexts}",
	year          = 1992,
}