Horii, M., H. Sakai, and M. Takano. “Variability in Palaeoclimatic Periodicity over 2,500 Kyr from Magnetic Susceptibility of Lake Baikal Sediments”. Journal of Nepal Geological Society, vol. 25, Dec. 2001, pp. 93–98, doi:10.3126/jngs.v25i0.32063.