BibTex format
@techreport{Speirs:2020,
author = {Speirs, J and Jalil-Vega, F and Cooper, J and Gerber, Machado P and Giarola, S and Brandon, N and Hawkes, A},
booktitle = {White Paper 5: The Flexibility of gas – what is it worth?},
publisher = {Sustainable Gas Institute, Imperial College London},
title = {The flexibility of gas - what is it worth?},
url = {https://www.imperial.ac.uk/sustainable-gas-institute/research-themes/white-paper-series/white-paper-5-the-flexibility-of-gas--what-is-it-worth/},
year = {2020}
}