1. L. Wessels, “Schrödinger and the descriptive tradition”, in: R. Aris, H.T. Davis, and R.H. Stuewer (eds.), Springs of scientific creativity, op. cit. p. 265–269
2. W. Heisenberg, Physics and beyond, op. cit. chapter 5
3. E. Schrödinger, “Conceptual models in physics and their philosophical value”, in: Science, theory and man, op. cit.
4. ibid. p. 120
5. ibid. p. 121