@inproceedings{HCI-SEC-1997-EllisDMAJ,
	author        = "Stephen R. Ellis and N. S. Dorighi and Brian M. Menges and Bernard D. Adelstein and Richard H. Jacoby",
	booktitle     = "{Proceedings of the Seventh International Conference on Human-Computer Interaction. Volume 2: Social and Ergonomic Considerations}",
	isbn          = "0-444-82183-X",
	pages         = "873--876",
	publisher     = "{Elsevier}",
	title         = "{In Search of Equivalence Classes in Subjective Scales of Reality}",
	year          = 1997,
}