@inproceedings{TUW-120320, author = {Mok, Esmond and Retscher, G{\"u}nther and Xia, Linyuan}, title = {Investigation of Seamless Indoor and Outdoor Positioning Integrateing WiFi and GNSS}, booktitle = {XXIII International FIG 2006 Congress}, year = {2006}, numpages = {15}, note = {accepted for publication; talk: XXIII International FIG 2006 Congress, Munich, Germany; 2006-10-08 -- 2006-10-13} }