@inproceedings{DBLP:conf/pods/Behrend03,
  author    = {Andreas Behrend},
  title     = {Soft stratification for magic set based query evaluation
               in deductive databases},
  booktitle = {PODS},
  year      = {2003},
  pages     = {102-110},
  ee        = {http://doi.acm.org/10.1145/773153.773164},
  crossref  = {DBLP:conf/pods/2003},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}

@proceedings{DBLP:conf/pods/2003,
  editor    = {Frank Neven and
               Catriel Beeri and
               Tova Milo},
  title     = {Proceedings of the Twenty-Second ACM SIGACT-SIGMOD-SIGART
               Symposium on Principles of Database Systems, June 9-12,
               2003, San Diego, CA, USA},
  publisher = {ACM},
  year      = {2003},
  isbn      = {1-58113-670-6},
  ee        = {http://dl.acm.org/citation.cfm?id=773153},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}