1. D. Gorinevsky, 5th International Workshop on Structural Health Monitoring, Honeywell Laboratories, Stanford, CA, September, 2005.
2. Bureau of Transportation Statistics, Office of Airline Information, 1200 New Jersey Avenue, SE, Washington, DC 20590, June 2009, http://www.bts.gov/oai , online tool.
3. D. Samson, T. Otterpohl, M. Kluge, U. Schmid, and Th. Becker, J. Electron. Mater. 39(9), 2092–2095 (2010).
4. D. Samson, M. Kluge, Th. Becker, and U. Schmid, Sens. Actuators A 172, 240–244 (2011).
5. D. Samson, M. Kluge, Th. Becker, T. Otterpohl, U. Schmid, Elektrotechnik Informationstechnik 127(6), 176–180 (2010) (in German).