@inproceedings{WickerZielenRose2009,
  author    = {Sabine Wicker and Stefan Zielen and Markus A. Rose},
  title     = {Obstacles in the motivation of health care workers for pertussis vaccination},
  booktitle = {Procedia in Vaccinology},
  volume    = {1},
  number    = {1},
  pages     = {174 -- 176},
  doi       = {10.1016/j.provac.2009.07.029},
  year      = {2009},
}