@article{oai:nipr.repo.nii.ac.jp:00002514,
 author = {Yoshioka, Miki and Ito, Hajime and Yamaguchi, Fujio},
 journal = {Memoirs of National Institute of Polar Research. Special issue},
 month = {Mar},
 note = {P(論文), Change of several glaciers in Spitsbergen Island was investigated using surface photographs taken in 1933 and afterward. All glaciers investigated decreased their thickness and area at their terminal parts in the period from 1933 to 2004.},
 pages = {134--143},
 title = {Change of glaciers in Spitsbergen Island since 1933 observed with surface photographs},
 volume = {59},
 year = {2006}
}