@article{testingsurrogatebasedoptimizationwiththe,
  title = {Testing Surrogate-Based Optimization with the Fortified Branin-Hoo Extended to Four Dimensions},
  author = {Charles F. Jekel and Raphael T. Haftka},
  year = {2021},
  eprint = {2107.08035},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2107.08035v1},
}