Development of Upwelling during the Sedimentary Period of the Organic-Rich Shales in the Wufeng and Longmaxi Formations of the Upper Yangtze Region and Its Impact on Organic Matter... oleh Shao-Ze Zhao, Yong Li, Hua-Jun Min, Tong Wang, Zhou Nie, Zhan-Zhao Zhao, Jia-Zhen Qi, Jin-Cheng Wang, Jia-Peng Wu