THEORETICAL AND EXPERIMENTAL STUDY OF ICE IN THE PRESENCE OF A SPACE CHARGE A.V. ZARETSKII, V.F. PETRENKO, I.A. RYZHKIN and A.V. TRUKHANOV J. Phys. Colloques, 48 C1 (1987) C1-93-C1-98 DOI: 10.1051/jphyscol:1987113