An overview of northern Vietnam deep crustal structures from integrated geophysical observations oleh Van-Toan Dinh, Steven Harder, Bor-Shouh Huang, Viet-Bac Trinh, Van-Tuyen Doan, Hop-Phong Lai, Anh-Vu Tran, Hong Quang-Thi Nguyen, Van-Duong Nguyen