iemens Gigaset E455 SIM Art-Nr.: 2210962 / nt-ric 170074--68-13 schnurlos analog mit AB (bis zu 35 Min.), Staub- und Spritzwasserschutz nach DIN IP54, bel. Tastatur und Farbdisplay, Telefonb. 150 Eintr. Weitere Informationen: https://www.sc99-shop.de/s
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S. Käbisch, A. Schmitt, M. Winter, and J. Heuer. Smart Grid Communications (SmartGridComm), 2010 First IEEE International Conference on, page 161 -166. (October 2010)