Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) FUKUCHI YASUNAGA and DOI YASUO and HOSOKAWA HIROSHI,ON THE STRENGTH OF BEAMS WITH CIRCULAR HOLES AND A DESIGN METHOD : Part-1 Non-reinforced Holes,Transactions of the Architectural Institute of Japan,03871185,Architectural Institute of Japan,1980,296,0,27-36,https://cir.nii.ac.jp/crid/1390282680514661376,https://doi.org/10.3130/aijsaxx.296.0_27