BibTex format
@techreport{Haigh:2011,
author = {Haigh, JD},
booktitle = {Grantham Institute for Climate Change Briefing Paper No 5},
publisher = {Imperial College London},
title = {Solar Influences on Climate},
url = {http://www.imperial.ac.uk/people/j.haigh/},
year = {2011}
}