@misc{indiciae46e383db4c39,
  title = {Workload of window cleaners using ladders differing in rung separation.},
  author = {Marco J M Hoozemans and Michiel P de Looze and Idsart Kingma and Karen C N Reijneveld and Elsbeth M de Korte and Maarten P van der Grinten and Jaap H van Dieën},
  year = {2005},
  doi = {10.1016/j.apergo.2005.01.013},
  url = {https://pubmed.ncbi.nlm.nih.gov/15854570/},
  note = {Source identifier: 15854570}
}