ALTERNATIVES AND IMPROVEMENTS FOR SUPERCONDUCTING DIPOLE COILS FOR HERA G. Horlitz, H. Kaiser, G. Knust, K.-H. Mess, S. Wolff, P. Schmüser and B.H. Wiik J. Phys. Colloques, 45 C1 (1984) C1-259-C1-262 DOI: 10.1051/jphyscol:1984152