Ryuji Kitagawa
- The Mechanical Characteristics Of Hiroshima Granite. In: 土木学会論文集 (Doboku Gakkai rombunshū), v. 1998, n. 589 (März 1998). (1998):
- Field Investigation Of Weathering In Hiroshima Granite. In: 土木学会論文集 (Doboku Gakkai rombunshū), v. 1998, n. 589 (März 1998). (1998):
- Comparisons Of Mechanical Characteristics Of Weathered Granites From Two Different Sites. In: 土木学会論文集 (Doboku Gakkai rombunshū), v. 1998, n. 610 (Dezember 1998). (1998):
- SYSTEM FOR ESTIMATING IN-SITU ANGLE OF SHEAR RESISTANCE φd OF DECOMPOSED GRANITE SOIL. In: 土木学会論文集 (Doboku Gakkai rombunshū), v. 2000, n. 666 (Dezember 2000). (2000):