Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) NAGANUMA Kazuhiro,STRESS-STRAIN RELATIONSHIP FOR CONCRETE UNDER TRIAXIAL COMPRESSION,Journal of Structural and Construction Engineering (Transactions of AIJ),13404202,Architectural Institute of Japan,1995,60,474,163-170,https://cir.nii.ac.jp/crid/1390282680614079488,https://doi.org/10.3130/aijs.60.163_2