@article{<a href="http://dblp.uni-trier.de/db/about/bibtex.html">DBLP</a>:journals/tissec/BasinBK12,
  author    = {David A. Basin and
               Samuel J. Burri and
               G{\"u}nter Karjoth},
  title     = {Dynamic enforcement of abstract separation of duty constraints},
  journal   = {ACM Trans. Inf. Syst. Secur.},
  volume    = {15},
  number    = {3},
  year      = {2012},
  pages     = {13},
  ee        = {http://doi.acm.org/10.1145/2382448.2382451},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}