@article{tyurnev_serzhantov_2011, 
  title={DUAL-MODE SPLIT MICROSTRIP RESONATOR FOR COMPACT NARROWBAND BANDPASS FILTERS}, 
  volume={23}, 
  DOI={10.2528/pierc11062104}, 
  publisher={EMW Publishing}, 
  author={Tyurnev and Serzhantov}, 
  year={2011}
  }