@article{oai:soar-ir.repo.nii.ac.jp:00013062,
 author = {HAMANO,  Hiroki and TANIMOTO,  Bennosuke},
 journal = {信州大学工学部紀要},
 month = {Dec},
 note = {Article, 信州大学工学部紀要 25: 13-20 (1968)},
 pages = {13--20},
 title = {Tunnel Structure Analysis by the Operational Method First Report},
 volume = {25},
 year = {1968}
}