W. Kainz, A. Christ, T. Kellom, S. Seidman, N. Nikoloski, B. Beard, and N. Kuster, "Dosimetric comparison of the specific anthropomorphic mannequin to 14 anatomical head models using a novel definition for the mobile phone positioning," Physics in Medicine and Biology, vol. 50, no. 14, pp. 3423-3445, 2005.