Cerqueira Y,  Araújo C, Vicente J, Pereira HM & Honrado J (2010) "Ecological and Cultural Consequences of Agricultural Abandonment in the Peneda-Gerês National Park (Portugal)" Chapter 2 in: Evelpidou N, Figueiredo T, Mauro F, Tecim V & Vassilopoulos A (Eds.) "Natural Heritage from East to West". 1st Edition., 2010, XIII, 363 p., Hardcover. ISBN: 978-3-642-01576-2. Springer

Cerqueira, Y.C., 2007. A new hierarchical methodology for the zoning of botanical value for nature conservation purposes. Masters Dissertation. Faculdade de Ciências da Universidade do Porto.

Cerqueira, Y. R. 2007. The abandonment of agricultural practices and TEK In: Young et., al. 2007. European research for a sustainable Europe: Research contributing to the implementation of the EU Biodiversity Strategy.