@article{tamura_nomura_ishida_2015, 
  title={Calcium Removal Technique using Ion-exchange Resin Method}, 
  volume={26}, 
  DOI={10.3985/mcwmr.26.53}, 
  publisher={Japan Society of Waste Management Experts}, 
  author={Tamura, Noritoshi and Nomura, Koji and Ishida, Yasuyuki}, 
  year={2015}, 
  month={Jan}
  }