...
机译:
Univ Marburg, Fac Phys, D-35032 Marburg, Germany;
Tech Univ Munich, Walter Schottky Inst, D-85748 Garching, Germany;
Humboldt Univ, Inst Phys, D-12489 Berlin, GermanyUniv Giessen, Inst Phys 1, D-35392 Giessen, GermanyUniv Giessen, Inst Phys Chem, D-35392 Giessen, Germany;