1. H.K. Onnes, Investigations into the properties of substances at low temperatures, which have led, amongst Other things, to the preparation of liquid helium, in Nobel Lecture, vol. 4 (1913)
2. T. Jenkins, A brief history of…semiconductors. Phys. Educ. 40(5), 430 (2005)
3. J. Bardeen, W.H. Brattain, The transistor, a semi-conductor triode. Phys. Rev. 74(2), 230 (1948)
4. L.J. Lilienfeld, Method and apparatus for controlling electric currents. U.S. Patent, No. 1,745,175A, 22 Oct 1925
5. D.A. Buck, The cryotron – a superconductive computer component. Proc. IRE 44(4), 482–493 (1956)