1. W. Pauli, Letter to L. Meitner and her colleagues dated 4 December 1930 (letter open to the participants of the conference in Tübingen) (1930), recorded in W. Pauli, Wissenschaftlicher Briefwechsel mit Bohr, Einstein, Heisenberg u.a., Band 11 (Springer, Berlin, 1985) p. 39. A reference to ‘neutrino’is seen in a letter from Heisenberg to Pauli on 1 December 1930: ‘Zu Deinen Neutronen möchte ich noch bemerken: ...’
2. E. Fermi, Nuovo Cimento 11, 157 (1934)
3. C.-S. Wu, E. Ambler, R.W. Hayward, D.D. Hoppes, R.P. Hudson, Experimental test of parity conservation in beta decay. Phys. Rev. 105(4), 1413 (1957)
4. M. Goldhaber, L. Grodzins, A.W. Sunyar, Helicity of neutrinos. Phys. Rev. 109(1958), 1015 (1958)
5. R.E. Marshak, E.C.G. Sudarshan, Proc. Int. Conf. Elem. Part, Padua (1957)