@misc{Kozakiewicz_Adam_Model, author={Kozakiewicz, Adam and Lasota, Krzysztof}, howpublished={online}, publisher={Instytut Łączności - Państwowy Instytut Badawczy, Warszawa}, language={ang}, title={Model of User Access Contro to Virtual Machines Based on RT-Family Trust Management Language with Temporal Validity Constraints – Practical Application, Journal of Telecommunications and Information Technology, 2012, nr 3}, type={artykuł}, keywords={virtual environment, security model, RT-family languages, user accesscontrol}, }