Irons, F. E. Poincaré's 1911–12 proof of quantum discontinuity interpreted as applying to atoms. American Journal of Physics. August 2001, 69 (8): 879–84. Bibcode:2001AmJPh..69..879I. doi:10.1119/1.1356056.
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Irons, F. E. Poincaré's 1911–12 proof of quantum discontinuity interpreted as applying to atoms. American Journal of Physics. August 2001, 69 (8): 879–84. Bibcode:2001AmJPh..69..879I. doi:10.1119/1.1356056.