@article{obol_vittoria_2003, 
  title={Microwave permeability of Y-type hexaferrites in zero field}, 
  volume={94}, 
  DOI={10.1063/1.1601291}, 
  publisher={AIP Publishing}, 
  author={Obol and Vittoria}, 
  year={2003}, 
  month={Sep}
  }