Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Takase Y. and Ikeda T. and Yagisawa Y. and Onaka A.,Connection Method using Connection Element Having High Shear Strength and Stiffness for Seismic Retrofitting,Concrete Journal,03871061,Japan Concrete Institute,2013,51,11,898-904,https://cir.nii.ac.jp/crid/1390282679518830336,https://doi.org/10.3151/coj.51.898