TY  - BOOK
AU  - Hiramatsu, Yoshio.
AU  - Oka, Yukitoshi, coaut.
ED  - Kyoto University, Engineering Research Institute (Japón).
TI  - Determination of the tensile strength of rock by a compress-ion test of an irregular test piece / by Yoshio Hiramatsu a-nd Yukitoshi Oka
CY  - Kyoto, Japón : Kyoto University, Engineering Research Institute
ER  -