@article{kelly2011analysis,
title={Analysis of retrofit air source heat pump performance: Results from detailed simulations and comparison to field trial data},
author={Kelly, NJ and Cockroft, J},
journal={Energy and Buildings},
volume={43},
number={1},
pages={239--245},
year={2011},
publisher={Elsevier},
url={https://www.sciencedirect.com/science/article/pii/S0378778810003385},
urldate={2023-04-12},
doi={10.1016/j.enbuild.2010.09.018},
}