WASET
    R. Heydari and  M. R. Salehi,  Tunable Photonic Microwave Bandpass Filter Based on EOPM and VPBS.   journal   = {International Journal of Electronics and Communication Engineering}, [online]. World Academy of Science, Engineering and Technology.
    August 2009, vol. 32(8). 1607 - 1609
    [viewed 24 April 2024]. Available from: https://publications.waset.org/pdf/6369.