TWO NOVEL HCD-STRUCTURES FOR CuII-LASERS AND THEIR PERFORMANCE H.J. Eichler, H. Koch, J. Paffenholz, J. Salk and G. Skrobol J. Phys. Colloques, 40 C7 (1979) C7-379-C7-380 DOI: 10.1051/jphyscol:19797186