@phdthesis{oai:tsukuba.repo.nii.ac.jp:00020831,
 author = {白坂, 蕃 and Shirasaka, Shigeru},
 month = {},
 note = {1980},
 school = {筑波大学, University of Tsukuba},
 title = {The development and transformation of tourist settlements on the heavy-snowy regions of Japan : with emphasis on ski settlements},
 year = {1980}
}