Hoang, T. V., Wysocka, A., Nguyen, C. Q., Pha, P. D. and Ziółkowski, P. (2017) “Sedimentary petrology characteristics and their implications for provenance of Hoanh Bo Basin Neogene system in Quang Ninh province, north-eastern Vietnam”, Geology, Geophysics and Environment, 43(1), p. 69. doi: 10.7494/geol.2017.43.1.69.