@phdthesis{oai:tsukuba.repo.nii.ac.jp:00011060,
 author = {大貫, 靖浩 and Ohnuki, Yasuhiro},
 month = {},
 note = {2000, Includes bibliographical references},
 school = {筑波大学, University of Tsukuba},
 title = {Study on soil erosion after forest clearing in Okinawa Island},
 year = {2001}
}