Towards an abstraction layer for security assurance measurements: (invited paper). - Teemu Kanstrén; Reijo Savola; Antti Evesti; Heimo Pentikäinen; Artur Hecker; Moussa Ouedraogo; Kimmo Hätönen; Perttu Halonen; Christophe Blad; Óscar López; Saioa Ros (ECSA Companion Volume, 2010)