@phdthesis{oai:tsukuba.repo.nii.ac.jp:00034725,
 author = {小野寺, 三朗 and ONODERA, Saburo},
 month = {},
 note = {2013, この博士論文は内容の要約のみ公表しています},
 school = {筑波大学, University of Tsukuba},
 title = {A Study on the Prevention of Aircraft Encounter with Volcanic Ash in Proximity Area between Airways and Active Volcano},
 year = {2013}
}