1. Annual reports 1976 and 1977 of the Gesellschaft für Schwerionenforschung,1977
2. Nuclear spectroscopy and reactions;Macfarlane,1974
3. E. Georg, R. Fass, P. Lemmertz, H.G. Wilhelm, H. Wollnik, D. Hirdes, H. Jungclas, R. Brandt, D. Schardt and K. Wien, Nucl. Instr. Meth., to be published (see also ref. [1a], p. 154 and ref. [1b], pp. 172, 173).
4. Metal foils as windows of a gas-jet thermalization chamber at a heavy-ion beam