van der Woerd, H. J., Institute for Environmental Studies (IVM), VU University Amsterdam, De Boelelaan 1087, 1081 HV Amsterdam, the Netherlands, Netherlands

• Vol 8 (2013) - Regular papers
  The Forel-Ule scale revisited spectrally: preparation protocol, transmission measurements and chromaticity
  Abstract  PDF
• Vol 9 (2014) - Regular papers
  The modern Forel-Ule scale: a ‘do-it-yourself’ colour comparator for water monitoring
  Abstract  PDF