1St Ifac Workshop on Control Applications and Ergonomics in Agriculture (Caea 98), Date: JUN 14-17, 1998, Location: ATHENS, GREECE, Patrocinadores: Int Fed Automat Control, Tech Comm Agr Automat, Commiss Int Genie Rural, European Soc Agr Engn, Agr Univ Athens, Tech Chambers Greece