@article{508,
  author       = {Lin, Muyu and Hirschfeld, Gerrit and Margraf, Jürgen},
  issn         = {1939-134X},
  journal      = {Psychological Assessment},
  number       = {5},
  pages        = {609--621},
  publisher    = {American Psychological Association},
  title        = {{Brief form of the Perceived Social Support Questionnaire (F-SozU K-6): Validation, norms, and cross-cultural measurement invariance in the USA, Germany, Russia, and China}},
  doi          = {10.1037/pas0000686},
  volume       = {31},
  year         = {2019},
}

@article{470,
  author       = {Bieda, Angela and Hirschfeld, Gerrit and Schoenfeld, Pia and Brailovskaia, Julia and Zhang, Xiao Chi and Margraf, Jürgen},
  issn         = {1939-134X},
  journal      = {Psychological Assessment},
  number       = {4},
  pages        = {408–421},
  publisher    = {American Psychological Association APA},
  title        = {{Universal Happiness? Cross-Cultural Measurement Invariance of Scales Assessing Positive Mental Health}},
  volume       = {29},
  year         = {2017},
}