Török K, Botta-Dukát Z, Dancza I et al: Invasion Gateways and Corridors ... (2003)

Török K, Botta-Dukát Z, Dancza I, Németh I, Kiss J, Mihály B, Magyar D
2003
Invasion Gateways and Corridors in the Carpathian Basin: Biological Invasions in Hungary.
Biological Invasions 5:349-356
Summary: 

Biological invasions in Hungary are causing severe problems as a result of recent introductions and rapid land use changes. Poorly managed agricultural and rural, disturbed areas and aquatic ecosystems are the most prone to plant invasions. Dry grasslands and semi-natural forests are less prone to invasions. A few plant species have lead to human health (allergenic) problems. Some insect species have caused economic problems to crop production. A number of monitoring networks and control measures are in place for selected plants and insects.