BibTex format
@techreport{Few:2016,
author = {Few, SPM and Schmidt, O and Gambhir, A},
publisher = {Grantham Institute, Imperial College London},
title = {Electrical energy storage for mitigating climate change},
url = {https://www.imperial.ac.uk/grantham/publications/2016/electrical-energy-storage-for-mitigating-climate-change---grantham-briefing-paper-20.php},
year = {2016}
}