|Up a level|
Dunn, Jenny C. and Hamer, Keith C. and Benton, Tim G. (2015) Anthropogenically-mediated density dependence in a declining farmland bird. PLoS One, 10 (10). e0139492. ISSN 1932-6203
Ness, Mitchell and Oughton, Elizabeth and Ritson, Christopher and Brennan, Mary and Ruto, Eric (2008) Improvement of food quality and safety in the European organic and “low input” supply chain. Project Report. European Commission.