@conference{10,
author = "M. Bagnulo and B. Alarcos and M. Calder{\'o}n and Sedano, Marifeli",
title = "{P}roviding {A}uthentication {\&} {A}uthorization {M}echanisms for {A}ctive {S}ervice {C}harging",
url = "administrator/components/com_jresearch/files/publications/20091203_141905.pdf",
year = "2002",
}