@Article{bg-5-797-2008,
AUTHOR = {Kashiyama, Y. and Ogawa, N. O. and Shiro, M. and Tada, R. and Kitazato, H. and Ohkouchi, N.},
TITLE = {Reconstruction of the biogeochemistry and ecology of photoautotrophs based on the nitrogen and carbon isotopic compositions of vanadyl porphyrins from Miocene siliceous sediments},
JOURNAL = {Biogeosciences},
VOLUME = {5},
YEAR = {2008},
NUMBER = {3},
PAGES = {797--816},
URL = {http://www.biogeosciences.net/5/797/2008/},
ISSN = {1726-4170}
}