1. Broecker, W.S. and van Donk, J., 1970. Insolation changes, ice volumes, and the O18 record in deep-sea cores,. Reviews of Geophysics and Space Physics, 8: 169–197.
2. Imbrie, J., 1985. A theoretical framework for the Pleistocene ice ages, J. Geol. Soc. London, 142: 417–432.
3. Imbrie, J., Hays, J.D., Martinson, D.G., Mclntyre, A., Mix, A.C., Morley, J.J., Pisias, N.G., Prell, W.L. and Shackleton, N.J., 1984. The orbital theory of Pleistocene climate: support from a revised chronology of the marine S180 record. In: A.L. Gerger et al. (eds.) Milankovitch and Climate, Part I, D. Reidel Publ. Co., pp. 269–305.
4. Kukla, G.J., 1970. Correlation between loesses and deep-sea sediments, Geol. Foren. Srockholm
Förh., 92: 148–180.