Little, W. A.; Parks, R. D. (1962). "Observation of Quantum Periodicity in the Transition Temperature of a Superconducting Cylinder". Physical Review Letters. 9 (1): 9–12. Bibcode:1962PhRvL...9....9L. doi:10.1103/PhysRevLett.9.9.
Little, W. A.; Parks, R. D. (1962). "Observation of Quantum Periodicity in the Transition Temperature of a Superconducting Cylinder". Physical Review Letters. 9 (1): 9–12. Bibcode:1962PhRvL...9....9L. doi:10.1103/PhysRevLett.9.9.