H. Ekstein, “Gauge variance for particles in an external magnetic field”, Nuov Cim A, 54, no. 3, 1979, 305
Ricardo Heras, “Dirac quantisation condition: a comprehensive review”, Contemporary Physics, 59, no. 4, 2018, 331
Arkadiusz Jadczyk, “The Explicit Form of the Unitary Representation of the Poincaré Group for Vector-Valued Wave Functions (Massive and Massless), with Applications to Photon Localization and Position Operators”, Mathematics, 12, no. 8, 2024, 1140
M. B. Mensky, “Application of the group of paths to the gauge theory and quarks”, Lett Math Phys, 3, no. 6, 1979, 513