1. Schönwiese, C.D., in: Bach, W., Crane, A.J., Berger, A.L., Longhetto, A. (eds.): Climate and Energy: Carbon Dioxide. Dordrecht, Boston, Lancaster: Reidel 1983, p. 315.
2. Berger, A. (ed.): Climatic Variations and Variability: Facts and Theories. Dordrecht, Boston, London: Reidel 1981.
3. Schönwiese, C.D.: Meteorol. Rdsch. 31 (1978) 73.
4. Schönwiese, C.D.: Arch. Meteorol. Geophys. Bioklimat. B 32 (1983) 337, (see also Arch. Meteorol.Geophys. Bioklimat. B 35 (1984) 155.)
5. Mitchell, J.M., Dzerdzeevskii, B., Flohn, H., Hofmeyer, W.L., Lamb, H.H., Rao, K.N., Wallén, C.C.: Climatic Change. Geneva: WMO Tech. Note No. 79, 1966.