@article{thebalancedtruncationboundistightfor,
  title = {On the balanced truncation error bound and sign parameters from arrowhead realizations},
  author = {Sean Reiter and Tobias Damm and Mark Embree and Serkan Gugercin},
  year = {2020},
  eprint = {2011.07170},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2011.07170v4},
}