%0 Generic %K Butterfly %K monitoring %K trend %K index %K Europe %K European Union %K indicator %K Biodiversity %C Wageningen, The Netherlands %D 2019 %I Butterfly Conservation Europe %P 23 %T The EU Butterfly Indicator for Grassland species: 1990-2017. Technical report %U https://nora.nerc.ac.uk/id/eprint/529535/ %8 June