Farneselli, M., P. Benincasa, G. Tosti, R. Pace, F. Tei, and M. Guiducci. “Nine-Year Results on Maize and Processing Tomato Cultivation in an Organic and in a Conventional Low Input Cropping System”. Italian Journal of Agronomy, Vol. 8, no. 1, Feb. 2013, p. e2, doi:10.4081/ija.2013.e2.