P. Kontkanen, P. Myllymäki, T. Roos, H. Tirri, K. Valtonen, and H. Wettig. 15th IEEE Int. Symposium on Personal, Indoor and Mobile Radio Communications, Barcelona, Spain, Complex Systems Computation Group, HElsinki Institute for Informationen Technology, IEEE Press, (2004)
T. King, T. Haenselmann, S. Kopf, and W. Effelsberg. TR-2005-015. University of Mannheim Fakultät für Mathematik und Informatik –, 68159 Mannheim, Germany, (Dezember 2005)
P. Dornbusch, and M. Zündt. ITG-Fachtagung "Technologie und Anwendungen für die mobile Informationsgesellschaft", Dresden, ISBN 3-8007-2723-4, VDE Verlag, (2002)
C. Hoene. Worcester, MA, Third Annual Technology Workshop for Precision Indoor Personnel Location and Tracking for Emergency Responders, Worcester Polytechnic Institute, (August 2008)
A. Teuber. Hannoversche Beiträge zur Nachrichtentechnik: Proceedings of 3rd Workshop on Positioning, Navigation and Communication 2006 (WPNC 06), page 158-168. Aachen, Shaker Verlag, (March 2006)
M. Rahn, P. Sanders, and J. Singler. 26th IEEE International Conference on Data Engineering, March 1-6, 2010, Long Beach, California, USA, page 685-688. IEEE Computer Society, (März 2010)