@article{helms_esch_crawford_2018, 
  title={Merkel III: From Committed Pragmatist to 'Conviction Leader'?}, 
  DOI={10.1080/09644008.2018.1462340}, 
  publisher={Informa UK Limited}, 
  author={Helms and Esch and Crawford}, 
  year={2018}, 
  month={May}
  }