1. Weyl, P.K.: Micropaleontology and ocean surface climate. Science 202(4367), 475–481 (1968)
2. Bé, A.W.H., Tolderlund, D.S.: Distribution and ecology of living planktonic foraminifera in surface waters of the Atlantic and Indian oceans. In: Funnel, B.M., Riedel, W.R. (eds.) The Micropaleontology of Oceans, pp. 105–149 (1971)
3. CLIMAP Project Members: Seasonal reconstructions of the earth’s surface at the last glacial maximum. Geological Society of America, Map and Chart Series, MC-36 (1981)
4. Hays, J.D., Imbrie, J., Shackleton, N.J.: Variations in the earth’s orbit: pacemaker of the ice ages. Science 194(4270), 1121–1132 (1976)
5. Sarnthein, M.: Sand deserts during glacial maximum and climatic optimum. Nature 272(5648), 43–46 (1978)