Jan Beutel Oliver Kasten Friedemann Mattern Kay Römer Frank Siegemund Lothar Thiele Prototyping Wireless Sensor Network Applications with BTnodes. 323-338 http://springerlink.metapress.com/openurl.asp?genre=article&issn=0302-9743&volume=2920&spage=323 2004 conf/ewsn/2004 EWSN db/conf/ewsn/ewsn2004.html#BeutelKMRST04