@inproceedings{DBLP:conf/tacas/HeuleB18,
  author    = {Marijn J. H. Heule and
               Armin Biere},
  editor    = {Dirk Beyer and
               Marieke Huisman},
  title     = {What a Difference a Variable Makes},
  booktitle = {Tools and Algorithms for the Construction and Analysis of Systems
               - 24th International Conference, {TACAS} 2018, Held as Part of the
               European Joint Conferences on Theory and Practice of Software, {ETAPS}
               2018, Thessaloniki, Greece, April 14-20, 2018, Proceedings, Part {II}},
  series    = {Lecture Notes in Computer Science},
  volume    = {10806},
  pages     = {75--92},
  publisher = {Springer},
  year      = {2018},
}