@misc{JuestelPuesSchwungetal.2019,
  author    = {Thomas J{\"u}stel and Patrick Pues and S. Schwung and Daniel Rytz},
  title     = {Reference Standards Based on Single Crystals for Optical Spectroscopy, 7th Workshop on NLO Laser Crystals and Oxides, Idar-Oberstein, September 2018},
  institution = {Chemieingenieurwesen (CIW)},
  type      = {lecture},
  year        = {2019},
}