Cornelia Hedeler Khalid Belhajjame Alvaro A. A. Fernandes Suzanne M. Embury Norman W. Paton 55-66 2009 BNCOD http://dx.doi.org/10.1007/978-3-642-02843-4_8 conf/bncod/2009 db/conf/bncod/bncod2009.html#HedelerBFEP09