Biswas, I., and H. Kasuya. “Higgs Bundles and Flat Connections over Compact Sasakian Manifolds, II: Quasi-Regular Bundles”. ANNALI SCUOLA NORMALE SUPERIORE - CLASSE DI SCIENZE, vol. 26, no. 2, July 2025, pp. 1223-62, doi:10.2422/2036-2145.202203_024.