H. Ekstein, “Gauge variance for particles in an external magnetic field”, Nuov Cim A, 54, № 3, 1979, 305
Ricardo Heras, “Dirac quantisation condition: a comprehensive review”, Contemporary Physics, 59, № 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, № 8, 2024, 1140
M. B. Mensky, “Application of the group of paths to the gauge theory and quarks”, Lett Math Phys, 3, № 6, 1979, 513