Kumar, P., Magnifico, G., Vodola, D., Ercolessi, E., Müller, M., & Bermudez, A. (2019). ZN gauge theories coupled to topological fermions: QED2 with a quantum mechanical θ angle. Physical Review B, 100(11), . doi:10.1103/PhysRevB.100.115152

Kumar, Prem, G. Magnifico, D. Vodola, E. Ercolessi, M. Müller, and A. Bermudez. "ZN Gauge Theories Coupled to Topological Fermions: QED2 With a Quantum Mechanical θ Angle." Physical Review B 100, no. 11 (2019).

Kumar, Prem, et al. "ZN Gauge Theories Coupled to Topological Fermions: QED2 With a Quantum Mechanical θ Angle." Physical Review B 100.11 (2019).