@article{WarschburgerLandgrafPetermannetal.2003,
  author    = {Petra Warschburger and Jeanne M. Landgraf and Franz Petermann and Klaus Freidel},
  title     = {Health-related quality of life in children assessed by their parents : evaluation of the psychometric properties of the CHQ-PF50 in two German clinical samples},
  year      = {2003},
}