(2012). An emerging typology for analysing OER initiatives. Cambridge 2012: Innovation and Impact – Openly Collaborating to Enhance Education, a joint meeting of OER12 and OpenCourseWare Consortium Global 2012. Retrieved from http://www.ucel.ac.uk/oer12/abstracts/303.html.
(1998). From teaching to learning: technological potential and sustainable, supported open learning. Systems Practice And Action Research, 11(6), 629-650, . Retrieved from http://link.springer.com/article/10.1023/A%3A1022136204137.
(1997). The assessment and management of wildlife areas: what can Systems offer?. 5th International Conference for the UK Systems Society - Systems for Sustainability: People, Organisations and Environments. Retrieved from http://oro.open.ac.uk/38160/.
(1997). A Systems view of teaching and learning: technological potential and sustainable, supported open learning. 5th International of the UK Systems Society - Systems for sustainability: people, organisations and environments. Retrieved from http://oro.open.ac.uk/38163/.
(2014). Squaring the open circle: resolving the iron triangle and the interaction equivalence theorem. OER14 Building communities of open practice. Retrieved from http://www.medev.ac.uk/oer14/34/view/.
(2013). Understanding influences on farmers' practices. Sustainable intensification: The pathway to low carbon farming?. Retrieved from http://www.sruc.ac.uk/downloads/file/1613/book_of_conference_proceedings.
(2007). Farmers' understandings of genetically modified crops within local communities. ESRC. Retrieved from http://www.esrcsocietytoday.ac.uk/my-esrc/grants/RES-151-25-0046/outputs/read/d2dabb7f-f9d5-45e4-9a77-d3028e07fd48.
(2006). Farmer communities of practice and high tech futures. The Rural Citizen: Governance, Culture and Wellbeing in the 21st Century. Retrieved from http://www.ruralfuturesconference.org/2006/.
(2000). The meaning of hedgerows in the English landscape: Different stakeholder perspectives and the implications for future hedge management. Journal Of Environmental Management, 60(1), 101-118, . Retrieved from http://oro.open.ac.uk/17826/.
(1999). How hedgerows and field margins are perceived by different interest groups. Aspects Of Applied Biology, (54). Retrieved from http://oro.open.ac.uk/30149/.