WASET
Cong, D. , Wu, M. , Mu, H. , He, X. , Lian, J. , Cao, J. , Cai, S. , Qin, H.. "Mathematical Modeling of the Working Principle of Gravity Gradient Instrument". World Academy of Science, Engineering and Technology, Open Science Index 129, International Journal of Geological and Environmental Engineering, (2017), 11(9), 823 - 827.