Junyang Zhou Joseph Kee-Yin Ng Algorithm Selectors for Providing Location Estimation Services within a Cellular Radio Network. 42-50 2006 conf/rtcsa/2006 RTCSA http://doi.ieeecomputersociety.org/10.1109/RTCSA.2006.11 db/conf/rtcsa/rtcsa2006.html#ZhouN06