O. Landron, M. J. Feuerstein, and T. S. Rappaport: A Comparison of Theoretical and Empirical Reflection Co-efficients for Typical Exterior Wall Surfaces in a Mobile Radio Environment, IEEE Transactions on Antennas and Propagation, vol. 44, pp. 341–351, Mar. 1996.

R. Hoppe, G. Wölfle, and F. M. Landstorfer, Fast 3D Ray Tracing for the Planning of Microcells by Intelligent Preprocessing of the Database in 3rd European Personal and Mobile Communications Conference (EPMCC), (Paris), March 1999.

A. Glassner, ed., An Introduction to Ray Tracing. San Diego: Academic Press, 1989.

G. Wölfle, R. Hoppe, F. M. Landstorfer, and R. R. Collmann, Vergleich deterministischer und empirischer Ausbreitungsmodelle für die Planung von Mikrozellen in ITG–Workshop Wellenausbreitung bei Funksystemen und Mikrowellensystemen, (Wessling), pp. 109–116, May 1998.

E. Damosso, ed., Digital Mobile Radio: COST 231 View on the Evolution towards 3rd Generation Systems. Bruxelles: Final Report of the COST 231 Project, published by the European Commission, 1998.

G. Wölfle and F. M. Landstorfer, Intelligent ray-tracing - A new approach for the field strength prediction in microcells, 47th Vehicular Technology Conference (VTC) 1997, Phoenix, Arizona, USA, pp. 790-794, May 1997.

D. Parsons: The Mobile Radio Propagation Channel, Pentech Press, London 1992.

G. Wölfle, F.M. Landstorfer, R. Gahleitner, and E. Bonek: Extensions to the field strength prediction technique based on dominant paths between transmitter and receiver in indoor wireless communications, 2nd European Personal and Mobile Communications Conference (EPMCC) 1997 (together with 3. ITG Fachtagung Mobile Kommunikation), Bonn, Germany, pp. 29-36, Sept 1997.