    @proceedings {1627,
	title = {9th International Conference on Applied Cryptography and Network Security (ACNS 2011)},
	volume = {6715},
	year = {2011},
	month = {Aug 2011},
	publisher = {Springer},
	author = {Javier Lopez and Gene Tsudik}
}
@proceedings {1619,
	title = {5th Spanish Conference on Cryptology and Information Security},
	journal = {RECSI},
	year = {1998},
	isbn = {8484978206},
	editor = {Javier Lopez and Pastor, J and Jose M. Troya}
}
