@article{findinggamelevelswiththerightdifficulty,
  title = {Finding Game Levels with the Right Difficulty in a Few Trials through Intelligent Trial-and-Error},
  author = {Miguel González-Duque and Rasmus Berg Palm and David Ha and Sebastian Risi},
  year = {2020},
  eprint = {2005.07677},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2005.07677v2},
}