http://www.jacmp.org/index.php/jacmp/article/view/4662
Performance of dose calculation algorithms from three generations in lung SBRT: comparison with full Monte Carlo-based dose distributions
Jarkko J. Ojala, Mika K. Kapanen, Simo J. Hyödynmaa, Tuija K. Wigren, Maunu A. Pitkänen
J Appl Clin Med Phys. 2014 15(2):4662. doi: 10.1120/jacmp.v15i2.4662