IMPROVED DETERMINATION OF BACKSCATTERING AMPLITUDE AND PHASE SHIFT FUNCTIONS A.G. McKALE, S.-K. CHAN, B.W. VEAL, A.P. PAULIKAS et G.S. KNAPP J. Phys. Colloques, 47 C8 (1986) C8-55-C8-62 DOI: 10.1051/jphyscol:1986808