@article{oai:rakuno.repo.nii.ac.jp:00004155,
 author = {ARAKI, Shigemi},
 issue = {2},
 journal = {酪農学園大学紀要. 自然科学編},
 month = {Feb},
 note = {Bulletin},
 pages = {389--393},
 title = {Structure of Vacua and Instability of Hopf Soliton in the Skyrme Model},
 volume = {12},
 year = {1988}
}