Solem, J. C.; Biedenharn, L. C. (1993). “Understanding geometrical phases in quantum mechanics: An elementary example”. Foundations of Physics23 (2): 185–195. Bibcode: 1993FoPh...23..185S. doi:10.1007/BF01883623.
Solem, J. C.; Biedenharn, L. C. (1993). “Understanding geometrical phases in quantum mechanics: An elementary example”. Foundations of Physics23 (2): 185–195. Bibcode: 1993FoPh...23..185S. doi:10.1007/BF01883623.