Kabirian, Marziyeh, et al. “Determination of Proper Neutron Beam Energy Spectrum for Penetration Depth in Liver BNCT”. International Academic Journal of Science and Engineering, vol. 1, no. 2, Dec. 2014, pp. 17-25, https://iaiest.com/iaj/index.php/IAJSE/article/view/IAJSE1410019.