jgg     2012 32 (3):  94-96    ISSN: 0412-1961  CN: 21-1139/TG APPLICATION OF THE BOWIN FORMULA AND THINKING Zhang Chijun Institute of Geodesy and Geophysics, CAS, Wuhan 430077 Received: 1900-01-01  Revised: 1900-01-01  Online: null Supporting info null