@article{mdpplaygroundcontrollingorthogonal,
  title = {MDP Playground: Controlling Orthogonal Dimensions of Hardness in Toy Environments},
  author = {Raghu Rajan and Jessica Lizeth Borja Diaz and Suresh Guttikonda and Fabio Ferreira and André Biedenkapp and Frank Hutter},
  year = {2020},
  url = {https://openreview.net/forum?id=axNDkxU9-6z},
}