Ryan, Anne B. (2010) Enough: A Worldview for Positive Futures. In: Fleeing Vesuvius: Overcoming the risks of economic and environmental collapse. O Books, Dublin: Feasta, the Foundation for the Economics of Sustainability. ISBN 978-0-9540510-1-3

Douthwaite, Richard (2004) Protecting and developing local economies. In: Unsettling the horses: Interogatting adult education. MACE: Maynooth Adult and Community Education, pp. 162-178.