Lu , H., X. Wang, X. Wang, X. Sun, S. Yi, Y. Zhou, Q. Liu, J. Swinehart, and J. Vandenberghe. “Palaeoclimatic Changes in Northeastern Qinghai-Tibetan Plateau Revealed by Magnetostratigraphy and Magnetic Susceptibility Analysis of Thick Loess Deposits”. Netherlands Journal of Geosciences, vol. 91, Mar. 2014, pp. 189 -8, doi:10.1017/S001677460000158X.