Aizen, M. A., L. A. Garibaldi, and M. Dondo. “Soybean Expansion and Agriculture Diversity in Argentina”. Ecología Austral, vol. 19, no. 1, Apr. 2009, pp. 045-54, https://ojs.ecologiaaustral.com.ar/index.php/Ecologia_Austral/article/view/1367.