@article{balancedtruncationmodelreductionwitha,
  title = {Balanced Truncation Model Reduction with A Priori Error Bounds for LTI Systems with Nonzero Initial Value},
  author = {Christian Schröder and Matthias Voigt},
  year = {2020},
  eprint = {2006.02495},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2006.02495v2},
}