TY - BOOK AU - Yu,Kegen AU - Sharp,Ian AU - Guo,Y.Jay TI - Ground-based wireless positioning SN - 9780470747049 (cloth) AV - TK5105.65 .Y8 2009 PY - 2009/// CY - Chichester, West Sussex, U.K., Hoboken, NJ PB - Wiley KW - Location-based services KW - Radio direction finders KW - Mobile geographic information systems ER -