Lampinen, Juha S., Petteri J. Välimäki, Antti A. Kuronen, Christian Stepanek, and Sauli E. Savolainen. 1999. “Cluster Models in Cellular Level Electron Dose Calculations”. Acta Oncologica 38 (3):367-72. https://doi.org/10.1080/028418699431456.