@article{oai:repository.dl.itc.u-tokyo.ac.jp:00040139,
 author = {Okamoto, Hisashi},
 issue = {1},
 journal = {Journal of mathematical sciences, the University of Tokyo},
 month = {Mar},
 note = {application/pdf},
 pages = {67--75},
 title = {Uniqueness of Crapper's pure capillary waves of permanent shape},
 volume = {12},
 year = {2005}
}