1. Quantitative Studies of Organic Matter and Associated Biochromes in Marine Sediments;Corcoran,1957
2. Pigments from marine muds;Fox,1941
3. Carotenoid pigments in the ocean floor;Fox;Arch. Biochem.,1944
4. Chlorophyll derivatives in woodland soils;Gorham;Soil Sci.,1959
5. Chlorophyll derivatives in surface muds from English lakes;Gorham;Limnol. Oceanograph.,1960