1. Abrahamsen, P., 2006. Daisy Program Reference Manual, Royal Veterinary and Agricultural University, Copenhagen, http://www.dina.kvl.dk/∼daisy/ftp/daisy-ref.pdf.
2. Daisy: an open soil–crop–atmosphere system model;Abrahamsen;Environ. Modell. Softw.,2000
3. Abrahamsen, P., Battilani, A., Coutinho, J., Doležal, F., Heidmann, T., Mazurczyk, W., Ruiz, J.D.R., Takáč, J., Tofteng, C., 2006. Daisy calibration. Results from the EU project FertOrgaNic, Deliverable D 5_1, http://www.fertorganic.org/.
4. Calibration of the root zone quality model for simulating tile drainage and leached nitrate in the Georgia Piedmont;Abrahamson;Agron. J.,2005
5. Battilani, A., Plauborg, F., Hansen, S., 2006. FertOrgaNic Decision Support System V4.0 Beta 6. Results from the EU project FertOrgaNic. Improved organic fertiliser management for high nitrogen and water use efficiency and reduced pollution in crop systems (QLK5-2002-01799). Deliverable D5_2. Final set of DSS rules. http://www.fertorganic.org/.