Jeckelmann, B.Schwitz, W.Bühlmann, H.-J.Houdré, R.Ilegems, M.Jucknischke, D.Py, M.A.2007-08-312007-08-312007-08-31199110.1109/TIM.1990.1032924https://infoscience.epfl.ch/handle/20.500.14299/11003Comparison of the quantized hall resistance in different GaAs/Al/sub x/Ga/sub 1-x/As heterostructurestext::conference output::conference proceedings::conference paper