1978: IX AETFAT Conference – Las Palmas, Spain
1982: X AETFAT Conference – Pretoria, South Africa
1985: XI AETFAT Conference – Missouri, USA
1988: XII AETFAT Conference – Hamburg, Germany
1991: XIII AETFAT Conference – Zomba, Malawi
1994: XIV AETFAT Conference – Wageningen, Netherlands
1997: XV AETFAT Conference – Harare, Zimbabwe
2000: XVI AETFAT Conference – Meise, Belgium