@conference {trakadas2008analyzing,
	title = {Analyzing energy and time overhead of security mechanisms in wireless sensor networks},
	booktitle = {2008 15th International Conference on Systems, Signals and Image Processing},
	year = {2008},
	pages = {137{\textendash}140},
	publisher = {IEEE},
	organization = {IEEE},
	author = {Trakadas, P. and Zahariadis, T and Leligou, HC and Voliotis, S and Papadopoulos, K.}
}
