求马大猷的论文及文献
如题，谁有马教授的以下的论文及文献？？请给我发一分好吗？
1.D-Y. Maa, “Microperforated-panel wideband absorber,” Noise Control Eng. J., 29, 77-84 (1987)
2.D-Y. Maa, “Potential of microperforated panel absorber,” J. Acoust. Soc. Am., 104, 2861-2866
3.D-Y. Maa, “Practical single MPP absorber,” International Journal of Acoust. and Vibration, 12, 3-6 (2007)
感激不尽！！
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