Gail-Joon Ahn Hongxin Hu Jing Jin Security-Enhanced OSGi Service Environments. 562-571 2009 39 IEEE Transactions on Systems, Man, and Cybernetics, Part C 5 http://dx.doi.org/10.1109/TSMCC.2009.2020437 db/journals/tsmc/tsmcc39.html#AhnHJ09