BibTex format
@techreport{Levey:2019,
author = {Levey, S and Gilbert, A},
booktitle = {Grantham Institute Outlook 2019-2020},
publisher = {Grantham Institute},
title = {Grantham Institute Outlook 2019-2020},
url = {http://www.imperial.ac.uk/grantham},
year = {2019}
}