Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) MIZUTA Yoshiaki and SANO Osamu and OGINO Shoji and OCHIISHI Masanori and KATO Harumi,Three Dimensional Stress Measurement by Hydraulic Fracturing forDetermination of Initial Rock Stresses and Stress Variation Induced by Excavation,Journal of the Mining and Metallurgical Institute of Japan,03694194,The Mining and Materials Processing Institute of Japan,1987,103,1188,75-85,https://cir.nii.ac.jp/crid/1390282680958849792,https://doi.org/10.2473/shigentosozai1953.103.1188_75