6R.S. Adhikari , O. Moselhi , A. Bagechi Image-based retrieval of concrete crack properties for bridge inspection[J].Automation in Construction, 10.1016/j .autocon.2013.06.011.
7Yoichi Yuki , Toshihiro Kasugai , Hidekazu Mizukoshi , Kazuhiko Takata Basic Experiment on Concrete Crack of Steel and Concrete Composite Slab [J].Kou kouzou rombunshuu, 2011, Vol.16 (63).