Novoa, S.; Wernand, M.; van der Woerd, H.J. (2015). WACODI: A generic algorithm to derive the intrinsic color of natural waters from digital images. Limnol. Oceanogr., Methods 13: 697–711. dx.doi.org/10.1002/lom3.10059, meer
Novoa, S.; Wernand, M.R.; van der Woerd, H.J. (2014). The modern Forel-Ule scale: a 'do-it-yourself' colour comparator for water monitoring. JEOS: RP 9: 14025 1-10. dx.doi.org/10.2971/jeos.2014.14025, meer
Novoa, S.; Wernand, M.R.; van der Woerd, H.J. (2013). The Forel-Ule scale revisited spectrally: preparation protocol, transmission measurements and chromaticity. JEOS: RP 8: 13057 1-8. dx.doi.org/10.2971/jeos.2013.13057, meer
Wernand, M.; Novoa, S.; van der Woerd, H.; Gieskes, W. (2014). A Centuries-long History of Participatory Science in Optical Oceanography: from observation to interpretation of natural water colouring. Histor. Meereskd. Jahrb. 19/20: 61-90, meer
