Physical Review LettersComment on Geometric Phases for Classical Field TheoriesJ. AnandanPublished Jun 13, 1988• 21 citationsPublisherAbstractReceived 15 December 1987DOI:https://doi.org/10.1103/PhysRevLett.60.2555©1988 American Physical SocietyDOI10.1103/physrevlett.60.2555