@inproceedings{HeuleBiere-LPAR15,
  author    = {Marijn J. H. Heule and
               Armin Biere},
  editor    = {Martin Davis and
               Ansgar Fehnker and
               Annabelle McIver and
               Andrei Voronkov},
  title     = {Compositional Propositional Proofs},
  booktitle = {Logic for Programming, Artificial Intelligence, and Reasoning - 20th
               International Conference, {LPAR-20} 2015, Suva, Fiji, November 24-28,
               2015, Proceedings},
  series    = {Lecture Notes in Computer Science},
  volume    = {9450},
  pages     = {444--459},
  publisher = {Springer},
  year      = {2015},
}