Topology optimization in OpenMDAO

@article{chung2019topology,
  author = {Hayoung Chung and John T. Hwang and Justin S. Gray and H. Alicia Kim},
  title = {Topology optimization in OpenMDAO},
  journal = {Structural and Multidisciplinary Optimization},
  year = {2019},
  volume = {59},
  number = {4},
  pages = {1385-1400},
  doi = {10.1007/s00158-019-02209-7},
  url = {https://doi.org/10.1007/s00158-019-02209-7},
  note = {Metadata verification: Crossref DOI}
}