Here is a link to websites and a list of books we recommend to any beginner or advanced gardener and those working for the conservation of plant varieties.
Hungarian organizations for the protection of agricultural diversity
Carpathian Basin Fruit Network
Hungarian Research Institute of Organic Agriculture: Participatory breeding and variety testing in organic farming
National Centre for Biodiversity and Gene Conservation: gene conservation of cultivated and wild plants and indigenous domestic animals
http://www.nodik.org/ (HU, EN)
Special Seeds with postal delivery to Hungary
Reinsaat - certified Austrian organic and biodynamic vegetable, flower and spice seeds that are suitable for seed saving. Webshop in English, German, Spanish and French.
https://reinsaat.at/ (EN, DE, ESP, FR)
Huge choice of open-pollinated vegetable, flower and spice seeds (only in French)