Barnes, Gerry, Saunders, Diane G.O. and Williamson, Tom (2020) Banishing barberry:The history of Berberis vulgaris prevalence and wheat stem rust incidence across Britain. Plant Pathology, 69 (7). pp. 1193-1202. ISSN 0032-0862
Dolman, Paul ORCID: https://orcid.org/0000-0002-9340-2791, Williamson, Tom, Fuller, Rob and Barnes, Gerald (2017) What does ‘traditional’ management really mean? British Wildlife, 29 (2). pp. 113-119. ISSN 0958-0956
Fuller, Robert J., Williamson, Tom, Barnes, Gerry and Dolman, Paul M. ORCID: https://orcid.org/0000-0002-9340-2791 (2017) Human activities and biodiversity opportunities in pre-industrial cultural landscapes: relevance to conservation. Journal of Applied Ecology, 54 (2). 459–469. ISSN 0021-8901
Barnes, Gerald, Pillatt, Tobias and Williamson, Thomas (2016) Rural Tree Populations in England:Historic Character and Future Planting Policy. British Wildlife. pp. 393-401. ISSN 0958-0956
Dallas, Patsy, Barnes, Gerry and Williamson, Tom (2015) Orchards in the landscape:a Norfolk case study. Landscapes, 16 (1). pp. 26-43.
Barnes, Gerry, Dallas, Patsy, Whyte, Nicola, Thompson, Heidi and Williamson, Tom (2007) Heathland and wood pasture in Norfolk: Ecology and landscape history. British Wildlife, 18 (6). pp. 395-403. ISSN 0958-0956
Williamson, Tom, Barnes, Gerry and Pillatt, Toby (2018) English Tree Populations: Economics, Agency and the Problem of the "Natural". In: The Human Dimensions of Forest and Tree Health. Palgrave Macmillan, London, pp. 21-45. ISBN 978-3-319-76955-4
Barnes, Gerry and Williamson, Tom (2022) English Orchards: A Landscape History. Windgather Press, Oxford. ISBN 978 1 91442 719 0
Barnes, Gerry and Williamson, Tom (2021) The Orchards of Eastern England: History, Ecology and Place. University of Hertfordshire Press. ISBN 9781912260423
Williamson, Tom, Barnes, Gerry and Pillatt, Toby (2017) Trees in England:Management and disease since 1600. University of Hertfordshire Press. ISBN 978-1-909291-96-6
Barnes, Gerald and Williamson, Thomas (2015) Rethinking Ancient Woodland:the archaeology and history of woods in Norfolk. University of Hertfordshire Press, Hatfield. ISBN 978-1-909291-58-4