@article{oai:tsukuba.repo.nii.ac.jp:00017141,
 author = {Hayashi, Nakao and Naumkin, Pavel I. and Pipolo, Patrick-Nicolas},
 issue = {1},
 journal = {Tsukuba Journal of Mathematics},
 month = {Jun},
 pages = {21--34},
 title = {Analytic smoothing effects for some derivative nonlinear Schrodinger equations},
 volume = {24},
 year = {2000}
}