Physics)" (Tata Institute of Fundamental Research, 1961)*Walter Heitler and Klaus Müller "Elementare Wellenmechanik" (Vieweg, 1961)*Walter Heitler "Elementare Wellenmechanik.
Physics)" (Tata Institute of Fundamental Research, 1961)* Walter Heitler and Klaus Müller "Elementare Wellenmechanik" (Vieweg, 1961)* Walter Heitler "Elementare Wellenmechanik.