N. A. Bradley and M. D. Dunlop, An Experimental Investigation into Wayfinding Directions for Visually Impaired People, Personal and Ubiquitous Computing, vol.16, issue.5, pp.395-403, 2005.
DOI : 10.1007/978-1-4684-7254-7_35

URL : http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.104.5179

S. Cardin, D. Thalmann, and F. Vexo, A wearable system for mobility improvement of visually impaired people, The Visual Computer, vol.409, issue.2, pp.109-118, 2007.
DOI : 10.3758/BF03194757

A. Cassinelli, C. Reynolds, and M. Ishikawa, Augmenting spatial awareness with Haptic Radar, 2006 10th IEEE International Symposium on Wearable Computers, pp.61-64, 2006.
DOI : 10.1109/ISWC.2006.286344

URL : http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.147.6108

J. Erp, H. Veen, C. Jansen, and T. Dobbins, Waypoint navigation with a vibrotactile waist belt, ACM Transactions on Applied Perception, vol.2, issue.2, pp.106-117, 2005.
DOI : 10.1145/1060581.1060585

N. Franklin, Language as a Means of Constructing and Conveying Cognitive Maps, GeoJournal Library, vol.32, pp.275-295, 1996.
DOI : 10.1007/978-0-585-33485-1_12

J. Lee, E. Choi, S. Lim, and B. Shin, Wearable Computer System Reflecting Spatial Context, 2008 IEEE International Workshop on Semantic Computing and Applications, pp.153-159, 2008.
DOI : 10.1109/IWSCA.2008.9

R. G. Long and E. W. Hill, Establishing and maintaining orientation for mobility, Foundations of Orientation and Mobility, pp.39-59, 1997.

J. M. Loomis, R. G. Golledge, and R. L. Klatzky, Gps-based navigation systems for the visually impaired, Fundamentals of Wearable Computers and Augumented Reality. L. Erlbaum Associates Inc, 2000.

H. Petrie, User requirements for a gps-based travel aid for blind people, Proc. of the Conference on Orientation and Navigation Systems for Blind Persons. RNIB, 1995.

S. Ram and J. Sharf, The people sensor: a mobility aid for the visually impaired, Digest of Papers. Second International Symposium on Wearable Computers (Cat. No.98EX215), p.166, 1998.
DOI : 10.1109/ISWC.1998.729548

D. A. Ross and B. B. Blasch, Wearable interfaces for orientation and wayfinding, Proceedings of the fourth international ACM conference on Assistive technologies , Assets '00, pp.193-200, 2000.
DOI : 10.1145/354324.354380

URL : http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.544.7135