@article{02221838, title = {Regular geodesic languages and the falsification by fellow traveler property.}, journal = {Geometry \& Topology}, volume = {5}, year = {2005}, pages = {129-134}, doi = {10.2140/agt.2005.5.129}, zbl = {1076.20030}, language = {en}, url = {http://dml.mathdoc.fr/item/02221838} }
Elder, Murray. Regular geodesic languages and the falsification by fellow traveler property.. Geometry & Topology, Tome 5 (2005) pp. 129-134. doi : 10.2140/agt.2005.5.129. http://gdmltest.u-ga.fr/item/02221838/