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APA Citation
Xu, L., Wang, Z. X., Wei, F., Li, R., & Zou, X. T. (2019). a highly selective balanced wideband bandpass filter based on nested split‐ring resonators. International journal of RF and microwave computer-aided engineering, 29(10), n/a. http://access.bl.uk/ark:/81055/vdc_100091264347.0x00002a