@article{oai:soar-ir.repo.nii.ac.jp:00013774,
 author = {SATOH,  Hiroshi and ISHIKAWA,  Masahiro and SHIRASAWA,  Yohko and MATSUMOTO,  Michio},
 journal = {Journal of the Faculty of Textile Science and Technology, Shinshu University. Ser. F, Physics and mathematics},
 month = {Dec},
 note = {Article, Journal of the Faculty of Textile Science and Technology, Shinshu University. Ser. F, Physics and mathematics 8: 1-10(1990)},
 pages = {1--10},
 title = {Parametric Instability of Helical Oscillations with External Signals in a Positive Column},
 volume = {8},
 year = {1990}
}