1. Chen JY (1997) Application of multi-inputs linear models MLM/MLPM in Zhaoniu River of Shandong Province. Prog Geogr 16(2):48–54 (in Chinese)
2. Chen JY (2003) Study on nitrate pollution in groundwater in the North China Plain from the viewpoint of groundwater flow system and land-use change based on chemistry and isotopes. Dissertation, Chiba University, Japan
3. Chen Mx, Ma FS (2002) Groundwater resources and environment of China. Earthquake Publishing House of China, Beijing (in Chinese)
4. Chen ZY, Zhang GH, Xu JM (1998) Paleoclimate record deduced from groundwater and climate change implications of groundwater resources in North China. Acta Geosci Sinica Bull Chin Acad Geol Sci 19(4):338–345 (in Chinese)
5. Chen JY, Tang CY, Sakura S, Kondoh A, Shen YJ, Ouyang Z (2001) The impacts of diversion from the Yellow River on the local aquifer-case study in Shandong Province, China. In: Seiler KP, Wohnlich S (eds) New approaches characterizing groundwater flow. A.A. Balkema Publishers, Lisse, The Netherlands, pp 1143–1447