@phdthesis{bach_günter_montemezzani_2008, 
  title={Optical phase conjugation for laser beam clean-up with Sn₂P₂S₆ crystals}, 
  DOI={10.3929/ethz-a-005711789}, 
  school={ETH Zurich}, 
  author={Bach, Tobias and Günter, Peter and Montemezzani, Germano Luigi}, 
  year={2008}
  }