Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Nihei T. and Okamoto M. and Tadokoro T.,The Development of Monitoring System for Railway Bridges and Viaducts,Concrete Journal,03871061,Japan Concrete Institute,2018,56,1,45-50,https://cir.nii.ac.jp/crid/1390282763082990464,https://doi.org/10.3151/coj.56.1_45