[1]
K. Nyaluke, N. Okelo, and O. Ongati, “Orthogonal Idempotents and Continuous Fredholm Operators under Perturbations”, Int. J. Mod. Comput. Inf. Commun. Technol., vol. 3, no. 5 & 6, pp. 42–47, Jun. 2020, doi: 10.65000/gx443b83.