Wenfa Zhu, Xing-Jie Chen, Zai-Wei Li, Xiang-Zhen Meng, Guopeng Fan, Wei Shao, Hai-yan Zhang. A SAFT Method for the Detection of Void Defect inside a Ballastless Track Structure Using Ultrasonic Array Sensors. Sensors, 19(21):4677, 2019. [doi]
Abstract is missing.