1. Ad-hoc-AG Boden, 2005. Bodenkundliche Kartieranleitung, 5th ed., Bundesanstalt für Geowissenschaften und Rohstoffe (Ed.): Hannover, Germany, ISBN 978–3-510–95920-4.
2. Grassland restoration on ex-arable land by transfer of brush-harvested propagules and green hay;Albert;Agric. Ecosyst. Environ.,2019
3. Anderson, A.A., 2004. Guidelines for Managing and Restoring Natural Plant Communities Along Trails and Waterways, Chapter 2: Managing, Restoring and Re-establishing Prairie and Savanna Communities. University Minnesota, Department of Natural Resources. Available from: 〈https://www.dnr.state.mn.us/trails_plantcommunities/index.html,https://files.dnr.state.mn.us/assistance/nrplanning/community/trails_plantcommunities/chapter2.pdf〉.
4. Use of white clover as an alternative to nitrogen fertiliser for dairy pastures in nitrate vulnerable zones in the UK: productivity, environmental impact and economic considerations;Andrews;Ann. Appl. Biol.,2007
5. Climatic extremes lead to species-specific legume facilitation in an experimental temperate grassland;Arfin Khan;Plant Soil,2014