NATO Advanced Study Institute on Nematode Vectors of PlantViruses
Bok · Engelsk · 1975 · Vis mer

International Symposium on Virus Diseases of Ornamental Plants
Bok · Engelsk · 1980 · Vis mer

International Symposium on Fruit Tree Virus Diseases
Bok · Engelsk · 1983 · Vis mer

Hodowla i Nasiennictwo Ziemniaka (symposium)
Bok · Russisk · 1974 · Vis mer

Conference of the Czechoslovak Plant Virologists
Bok · Engelsk · 1969 · Vis mer