@article{decisionproblemsforclarkcongruential,
  title = {Decision problems for Clark-congruential languages},
  author = {Makoto Kanazawa and Tobias Kappé},
  year = {2018},
  eprint = {1805.04402},
  archivePrefix = {arXiv},
  url = {http://arxiv.org/abs/1805.04402v2},
}