1. Berdermann, E., Bosch, F., Clemente, M., Güttner, F., Kienle, P., König, W., Kozhuharov, Ch., Martin, B., Povh, B., Tsertos, H., Wagner, W., Walcher, Th.: GSI Scientific Report 1980, Darmstadt, march 1981, p. 128, and Verh. Dtsch. Phys. Ges. (VI)16, 806 (1981)
2. Bokemeyer, H., Folger, H., Grein, H., Ito, S., Schwalm, D., Vincent, P., Bethge, K., Gruppe, A., Schulé, R., Waldschmidt, M., Greenberg, J.S., Schweppe, J., Trautmann, N.: GSI Scientific Report 1980, Darmstadt, march 1981, p. 127, and Verh. Dtsch. Phys. Ges. (VI)16, 795 (1981)
3. See e.g. the following review articles and furhter Refs, herein: Müller, B.: Ann. Rev. Nucl. Sci.26, 351 (1976)
4. Reinhardt, J., Greiner, W.: Rep. Prog. Phys.40, 219 (1977)
5. Rafelski, J., Fulcher, L.P., Klein, A.: Phys. Rep.38 C, 227 (1978)