@article{ali_koukoulas_2015, 
  title={Approaches to Energy Pellet Cost and Quality Optimization}, 
  volume={10}, 
  DOI={10.15376/biores.10.4.6318-6320}, 
  publisher={BioResources}, 
  author={Ali and Koukoulas}, 
  year={2015}, 
  month={Aug}
  }