by Akai, Koichi
Published in SOILS AND FOUNDATIONS (1963)

by AKAI, KOICHI, KAMON, MASASHI, SANO, IKUO, SOGA, KENICHI
Published in SOILS AND FOUNDATIONS (01.12.1991)

by Akai, Koichi, Yamauchi, Yukio
Published in SOILS AND FOUNDATIONS (1968)

by Akai, Koichi, Adachi, Toshihisa, Ando, Nobuo
Published in SOILS AND FOUNDATIONS (1975)

by AKAI, Koichi
Published in Zairyō shiken (1960)

by AKAI, Koichi, YABE, Masahiro
Published in Zairyō shiken (1961)

by Akai, Koichi
Year of Publication 1964