@article{oai:tsukuba.repo.nii.ac.jp:00042339,
 author = {中家, 渉 and NAKAIE, Wataru and 青木, 久 and AOKI, Hisashi and 早川, 裕弌 and HAYAKAWA, Yuichi S. and 松倉, 公憲 and MATSUKURA, Yukinori},
 journal = {筑波大学陸域環境研究センター報告, Bulletin of the Terrestrial Environment Research Center,the University of Tsukuba},
 month = {Dec},
 pages = {29--36},
 title = {<報文>連打法によるエコーチップ硬さ試験機の反発値と微小窪みとの関係},
 volume = {10},
 year = {2009}
}