Vuong, Nguyen, 		Tich, Vu, 		Thang, Ta, AND 		Duan, Bui.
" Spatial variation of the active stress field in the North West of Vietnam: implication for related geohazard mitigation" <em>VNU Journal of Science: Earth and Environmental Sciences</em> [Online], Volume 25 Number 1 (15 March 2009)