@inproceedings{DBLP:conf/lpnmr/GebserKOST09,
  author = {Gebser, Martin and Kaminski, Roland and Ostrowski, Max and Schaub, Torsten and Thiele, Sven},
  title = {On the Input Language of {ASP} Grounder Gringo},
  booktitle = {{LPNMR}},
  series = {Lecture Notes in Computer Science},
  volume = {5753},
  pages = {502--508},
  publisher = {Springer},
  year = {2009}
}