Použitá literatura Bradley, R. S., 1999: Paleoclimatology: Reconstructing Climates of the Quaternary, Second Edition. -- Harcourt Academic Press, 1-613. San Diego. Lowe, J. J., Walker, M. J. C., 1997: Reconstructing Quaternary Environments. -- Prentice Hall, 1-446. London. Wilson, R. L. C., Chapman, J. L., 2000: The Great Ice Age -- Climate Change and Life. -- Routledge, The Open University, London and New York, 1-267. London