@article{zhang2018water-energy-food,
  title = {Water-energy-food nexus: Concepts, questions and methodologies}
  author = {Zhang, Chi; Chen, Xiaoxian; Li, Yu; Ding, Wei; Fu, Guangtao},
  journal = {Journal of Cleaner Production},
  url = {http://www.sciencedirect.com/science/article/pii/S0959652618315403},
  doi = {10.1016/j.jclepro.2018.05.194},
  year = {2018}
}