https://www.muni.cz/vyzkum/publikace/1795982
Benchmarking plant diversity of Palaearctic grasslands and other open habitats | Masarykova...
https://www.uwgb.edu/green-bay-area-of-concern/fish-wildlife-habitats/open/
Open Habitats - Habitats - Green Bay Area of Concern - UW-Green Bay