| 2002 | 
| 3 | EE | Xiao-fan Feng,
Jon Speigle,
Atsuhisa Morimoto:
Halftone Quality Evaluation Using Color Visual Models.
PICS 2002: 5-10 | 
| 1998 | 
| 2 |   | Reginald G. Golledge,
Roberta L. Klatzky,
Jack M. Loomis,
Jon Speigle,
Jerome Tietz:
A Geographical Information System for a GPS Based Personal Guidance System.
International Journal of Geographical Information Science 12(7): 727-749 (1998) | 
| 1994 | 
| 1 | EE | Jack M. Loomis,
Reginald G. Golledge,
Roberta L. Klatzky,
Jon Speigle,
Jerome Tietz:
Personal guidance system for the visually impaired.
ASSETS 1994: 85-91 |