Food And Agriculture Organization Of The United Nations (2) Food And Agriculture Organization (1) Schindlbacher, Dr Andreas (federal Research And Training Centre For Forests, Neef, Dr Till (food And Agriculture Organization Of The United Nations (fao) (italy)), Mayer, Dr Mathias (university Of Natural Resources And Life Sciences (boku)) (1) Hamm, Dr Alison (usda-ars), Manter, Dr Daniel K. (usda-ars), Friedrich, Dr Theodor (retired Food And Agriculture Organization Of The United Nations (fao) Expert On Conservation Agriculture (germany)), Pisante, Prof Michele (university Of Teramo (1)