Hirohisa Maki
- A Basic Study On Characteristics Of Urethane Material For Grout Forepoling Applied For Tunnelling. In: 土木学会論文集 (Doboku Gakkai rombunshū), v. 1994, n. 504 (December 1994). (1994):
- Study On Types Of Solidified Shape Of Urethane Grout Forepolng. In: 土木学会論文集 (Doboku Gakkai rombunshū), v. 1996, n. 553 (December 1996). (1996):