Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI)
DJOKIC Branislav,A High Performance Frequency Insensitive Quadrature Phase Shifter and Its Application in Reactive Power Measurement,IEEE Trans. Instrum. Meas.,,,2000,49,1,161-165,https://cir.nii.ac.jp/crid/1570572701386344960,