Langhans, Tanja (2009)
Biological soil crusts in a temperate sand ecosystem : community assembly, disturbance, successional stages and interactions with vascular plant species.
Technische Universität Darmstadt
Dissertation, Bibliographie

Langhans, Tanja (2006)
Biological soil crusts and their effects on seedlings emergence in pioneer stages of base-rich inland sand ecosystems.
Konferenzveröffentlichung, Bibliographie