1. Bernard V, Renaudin S, Marguerie D (2006) Evidence of trimmed oaks (Quercus sp.) in North Western France during the early middle ages (9th–11th Centuries AD). In: Dufraisse A (ed) Charcoal analysis: new analytical tools and methods for archaeology. Oxford: Archaeopress, pp. 103–108
2. Bosques Naturales (2017) LA MOTA, ORXAL, SENDELLE, http://bosquesnaturales.com/finca/la-mota-orxal-sendelle/
3. Burgess PJ (2014) Initial stakeholder meeting report: grazed orchards in the UK. 18 July 2014, pp. 8. http://www.agforward.eu/index.php/en/Grazed_Orchards.html
4. Burgess PJ, Crous-Duran J, den Herder M, Dupraz C, Fagerholm N, Freese D, Garnett K, Graves AR, Hermansen JE, Liagre F, Mirck J, Moreno G, Mosquera-Losada MR, Palma JHN, Pantera A, Plieninger T, Upson M (2015) AGFORWARD Project Periodic Report: January to December 2014. Cranfield University: AGFORWARD. http://www.agforward.eu/index.php/en/news-reader/id-27-February-2015.html
5. Burgess PJ, Upson M, Graves A, Garcia de Jalon S (2016) System report: grazed orchards in England and Wales. April 2016, pp. 23. http://www.agforward.eu/index.php/en/Grazed_Orchards.html