Curbelo, J. P., R. B. Libotte, A. M. Oliva, R. C. Barros, and H. Alves Filho. “The Modified Spectral Deterministic Method Applied to fixed–source Discrete Ordinates Problems in X,Y–geometry”. Brazilian Journal of Radiation Sciences, vol. 8, no. 3A (Suppl.), Feb. 2021, doi:10.15392/bjrs.v8i3A.1268.