Table 4 Selected websites for specialist search
| Institutional websites | Simplified keywords |
|---|---|
| https://op.europa.eu/en/web/general-publications/environment | Frost, freeze, gélée, heladas, vorst |
| https://documents.worldbank.org/en/publication/documents-reports/documentlist | |
| https://www.cgiar.org/research/publications/ | |
| https://www.fibl.org/en/ | |
| https://www.openagrar.de | |
| https://www.agroscope.admin.ch/agroscope/en/home/publications/publication-search.html | |
| https://aureli.inrae.fr/ | ("gélées" OR “gel”) AND ("protection", OR "proteger") |