@article{unknowninputobserverdesignforlineartime,
  title = {Unknown Input Observer Design for Linear Time-Invariant Systems -- A Unifying Framework},
  author = {Markus Tranninger and Helmut Niederwieser and Richard Seeber and Martin Horn},
  year = {2021},
  eprint = {2111.14404},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2111.14404v1},
}