Khoo Shin Yee and  Lian Yee Cheng and  Ong Zhi Chao and  Zubaidah Ismail and  Siamak Noroozi,  Time Effective Structural Frequency Response Testing with Oblique Impact.   journal   = {International Journal of Aerospace and Mechanical Engineering}, [online]. World Academy of Science, Engineering and Technology.
    May 2018, vol. 138(6). 645 - 649
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