Venn, Stephen, Didem Ambarli, Idoia Biurrun, Jürgen Dengler, Anna Kuzemko, Péter Török, and Michael Vhrahnakis. 2018. “The Eurasian Dry Grassland Group (EDGG) in 2016–2017”. Hacquetia 17 (1). https://doi.org/10.1515/hacq-2017-0019 .