@article{UBHD-68498060,
  author={Bauser, Hannes and Berg, Daniel and Klein, Ole and Roth, Kurt},
  title={Inflation method for ensemble Kalman filter in soil hydrology},
  year={2018},
  pages={4921-4934},
  language={eng},
  issn={1607-7938},
  volume={22},
  number={9},
  note={Gesehen am 09.03.2020},
  journal={Hydrology and earth system sciences},
  doi={10.5194/hess-22-4921-2018},
}
@article{UBHD-68191370,
  author={Klein, Ole and Cirpka, Olaf A. and Bastian, Peter and Ippisch, Olaf},
  title={Efficient geostatistical inversion of transient groundwater flow using preconditioned nonlinear conjugate gradients},
  year={2017},
  pages={161-177},
  language={eng},
  issn={1872-9657},
  volume={102},
  note={Gesehen am 16.11.2017},
  journal={Advances in water resources},
  doi={10.1016/j.advwatres.2016.12.006},
}
@incollection{UBHD-68753967,
  author={Klein, Ole},
  title={An improved conjugate gradients method for quasi-linear Bayesian inverse problems, tested on an example from hydrogeology},
  year={2021},
  pages={357-385},
  language={eng},
  isbn={9783030552404},
  note={First online: 02 December 2020 ; Gesehen am 29.06.2021},
  booktitle={Modeling, simulation and optimization of complex processes HPSC 2018},
  editor={Bock, Hans Georg and J{\"a}ger, Willi and Kostina, Ekaterina and Phú, Hoàng-Xuǎn},
  doi={10.1007/978-3-030-55240-4_17},
}
@book{UBHD-68039058,
  author={Klein, Ole},
  title={Preconditioned and randomized methods for efficient Bayesian inversion of large data sets and their application to flow and transport in porous media},
  address={Heidelberg},
  year={2016},
  pages={1 Online-Ressource (x, 173 Seiten)},
  language={eng},
  school={Dissertation,  Heidelberg University,  2016},
  doi={10.11588/heidok.00021789},
  url={https://nbn-resolving.org/urn:nbn:de:bsz:16-heidok-217896},
  library={UB},
}
@book{UBHD-68031137,
  author={Klein, Ole},
  organization={Universit{\"a}t Heidelberg},
  title={Preconditioned and randomized methods for efficient Bayesian inversion of large data sets},
  subtitle={and their application to flow and transport in porous media},
  address={Heidelberg},
  year={2016},
  pages={x, 173 Seiten},
  language={eng},
  school={Dissertation,  Heidelberg University,  2016},
  library={UB [Signatur: 2016 U 973] ; MA [Signatur: Diss. Klein]},
}
@incollection{UBHD-68192353,
  author={Mohring, Jan and Ngo, Adrian and Klein, Ole and Bastian, Peter},
  title={Uncertainty quantification for porous media flow using multilevel Monte Carlo},
  year={2015},
  pages={145-152},
  language={eng},
  isbn={978-3-319-26520-9},
  note={Gesehen am 20.11.2017},
  booktitle={Large-Scale Scientific Computing},
  editor={Lirkov, Ivan and Margenov, Svetozar D. and Waśniewski, Jerzy},
  doi={10.1007/978-3-319-26520-9_15},
}