Jianfeng Lu Ruixuan Li Vijay Varadharajan Zhengding Lu Xiaopu Ma Secure Interoperation in Multidomain Environments Employing UCON Policies. 395-402 2009 ISC http://dx.doi.org/10.1007/978-3-642-04474-8_31 conf/isw/2009 db/conf/isw/isc2009.html#LuLVLM09