Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Kishitani Koichi,1021) On Durability Inspection of Reinforced Concrete Building built before 40 years(Materials. Execution),Transactions of the Architectural Institute of Japan,03871185,Architectural Institute of Japan,1959,63.1,0,81-84,https://cir.nii.ac.jp/crid/1390001205570444288,https://doi.org/10.3130/aijsaxx.63.1.0_81