@techreport{oai:jaxa.repo.nii.ac.jp:00044832,
 author = {浜口, 泰正 and HAMAGUCHI, Yasumasa},
 month = {Jul},
 note = {A clip type extensometer was newly developed in order to measure the elongation of testpieces at cryogenic temperature. This device has a small, light and simple structure and uses electrical resistance strain gages as a sensor. Using this extensometer, satisfactory experimental results were obtained in measuring the elongation of the specimens, made of structural materials for a liquid hydrogen rocket tank, in a liquid helium environment., 資料番号: NALTR0578000, レポート番号: NAL TR-578},
 title = {液体ヘリウム温度における伸び測定用クリップゲージ},
 year = {1979}
}