• 

  Petawatt

  https://web.archive.org/web/20100714003952/http://www.physik.uni-jena.de/inst/polaris/Forschung/F-Deutsch/Petawatt//FP-Petawatt.

  Homepage of the quantumelectronics group at the Institute of Optics and Quantumelectronics at the Friedrich-Schiller-University Jena

• 

  Petawatt

  http://wayback.archive.org/web/20101019035940/http://www.physik.uni-jena.de/inst/polaris/Forschung/F-Deutsch/Petawatt//FP-Petawa

  Homepage of the quantumelectronics group at the Institute of Optics and Quantumelectronics at the Friedrich-Schiller-University Jena

• 

  Petawatt

  https://web.archive.org/web/20100714003952/http://www.physik.uni-jena.de/inst/polaris/Forschung/F-Deutsch/Petawatt//FP-Petawatt.html

  Homepage of the quantumelectronics group at the Institute of Optics and Quantumelectronics at the Friedrich-Schiller-University Jena

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