@article{chang_wang_2014, 
  title={The Magnetic Properties of Zn<sub>0.98</sub>Fe<sub>0.02</sub>O with Additional Cu Doping}, 
  volume={02}, 
  DOI={10.4236/wjet.2014.23019}, 
  number={03}, 
  publisher={Scientific Research Publishing, Inc,}, 
  author={Chang and Wang}, 
  year={2014}
  }