1. Baumgartner R., M. Kriegmair, D. Jocham, A. Hofstetter, R. Huber, O. Karg, K. Häussinger: “Photodynamic Diagnosis (PDD) of early stage malignancies — Preliminary results in urology and pneumology”, SPIE Vol. 1641: 107–112(1992)
2. Kriegmair M., R. Baumgartner, W. Lumper, R. Riesenberg, S. Stocker, A. Hofstetter: “Fluorescence cystoscopy following intravesical instillation of aminolevulinic acid (ALA)”, J. Urol., 149: 240A (1993)
3. Prahl S.A., M. Keijzer, S.L. Jacques, A.J. Welch: “A Monte Carlo Model of light propagation in tissue”, SPIE IS5: 102–111 (1989)
4. Wagnières G., Promotionsarbeit an der école polytechnique de Lausanne, Schweiz, (1992)
5. Welsch H., R. Bimgruber, K.P. Boergen, V.P. Gabel, F. Hillenkamp: “The influence of scattering on the wavelength dependent light absorption in blood”, Procs. Symposium Lasers in Medicine and Biology, GSF-Bericht BPT 5:14.1–14.8 (1977)