@article{oai:nipr.repo.nii.ac.jp:00010877,
 author = {Hirawake, Toru and Odate , T. and Fukuchi , M.},
 issue = {5},
 journal = {Geophysical Research Letters},
 month = {},
 title = {Long-term variation of surface phytoplankton chlorophyllain the Southern Ocean during 1965–2002},
 volume = {32},
 year = {2005}
}