@article{oai:tsukuba.repo.nii.ac.jp:00004821,
 author = {Yamashita, Toshiyuki},
 journal = {菅平高原実験センター研究報告},
 month = {Mar},
 pages = {31--38},
 title = {Seed dispersal in Pinus densiflora SIEB. et ZUCC. stand at Tsukuba,Ibaraki Prefecture},
 volume = {10},
 year = {1990}
}