Niño Callejas, S. D., and J. C. Palombi Gómez. “A Methodology to Calculate the Non-Supplied Energy Level in Distribution Grids With Radial Structure”. Transactions on Energy Systems and Engineering Applications, vol. 2, no. 2, Dec. 2021, pp. 23-32, doi:10.32397/tesea.vol2.n2.4.