@inproceedings{blank2021constrained,
  title={Constrained bi-objective surrogate-assisted optimization of problems with heterogeneous evaluation times: Expensive objectives and inexpensive constraints},
  author={Blank, Julian and Deb, Kalyanmoy},
  booktitle={International Conference on Evolutionary Multi-Criterion Optimization},
  pages={257--269},
  year={2021},
  organization={Springer}
}