Wernand, M. R., van der Woerd, H. J. and Gieskes (2013). Trends in ocean colour and chlorophyll concentration from 1889 to 2000, worldwide. PLOS ONE, http://dx.plos.org/10.1371/journal.pone0063766.
Wernand, M. R., van der Woerd, H. J. and Gieskes (2013). Trends in ocean colour and chlorophyll concentration from 1889 to 2000, worldwide. PLOS ONE, http://dx.plos.org/10.1371/journal.pone0063766.