@article{oai:repository.dl.itc.u-tokyo.ac.jp:00032261,
 author = {高橋, 春男 and 小山, 悦郎},
 journal = {技術報告},
 month = {},
 note = {＜短報＞},
 pages = {92--95},
 title = {火山噴出物の見かけ密度測定のための体積計の試作},
 volume = {5},
 year = {1999}
}