@article{oai:tsukuba.repo.nii.ac.jp:00018232, author = {Hayakawa, Yuichi S. and 早川, 裕弌 and Matsukura, Yukinori and 松倉, 公憲}, issue = {3-4}, journal = {Geomorphology}, month = {Sep}, pages = {212--216}, title = {Factors influencing the recession rate of Niagara Falls since the 19th century}, volume = {110}, year = {2009} }