00452nas a2200121   4500008004100000245008500041210006900126653002400195100001900219700002200238700002100260856004900281       2014                        eng d00aAriadne’s Thread: Robust Turn Detection for Path Back-Tracing Using the iPhone0 aAriadne s Thread Robust Turn Detection for Path BackTracing Usin10aIndoor localization1 aFlores, German1 aManduchi, Roberto1 aZenteno, Enrique  uhttp://www.escholarship.org/uc/item/451333xg