TY - BOOK AU - Kaplan,Elliott D. TI - Understanding GPS: principles and applications SN - 0890067937 (alk. paper) U1 - 623.893 PY - 1996/// CY - Boston PB - Artech House KW - Global Positioning System KW - NUST N1 - 0; 0; 0; 623_893000000000000_KAP ER -