Radu Zapotinschi Dorina Peter A Two-Level Programming Approach to Volume Propagation in Higher-Dimensional Spaces. 41-46 2006 conf/synasc/2006 SYNASC http://doi.ieeecomputersociety.org/10.1109/SYNASC.2006.11 db/conf/synasc/synasc2006.html#ZapotinschiP06