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Wikipedia, free Internet-based encyclopedia, started in 2001, that operates under an open-source management style. It is overseen by the nonprofit Wikimedia Foundation and is one of the most-visited sites on the Internet. It uses a collaborative software known as wiki for editing articles.
https://en.wikipedia.org › wiki › Athyrium_americanum
Phegopteris rhaetica var. americana (Butters) Farw. Athyrium americanum, the alpine lady fern, is a species of fern in the family Aspleniaceae. [2] It is native to the Russian Far East, subarctic North America, and the west to west-central United States. [1] It occurs at higher altitudes and latitudes than Athyrium filix-femina, the common lady ...
https://de.wikipedia.org › wiki › Gletschersturz_an_der_Marmolata
Gletschersturz. Unter einem Gletscherabbruch, auch als Gletschersturz bezeichnet, versteht man einen „plötzlich als Eislawine“ abgehenden „Abbruch eines Gletscherteils“. Bei dem Unglück riss das untere Ende des Gipfel-Gletschers der Punta Rocca (3309 m s.l.m.), des niedrigeren der beiden Gipfel der Marmolata, ab. Die Abrisskante hatte eine Breite von 200 Metern und eine …
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