@book
{TN_libero_mab2,
author = {
Backeberg, Curt
},
title = {
Das Kakteenlexikon
Enumeratio diagnostica Cactacearum
},
edition = {
5. Aufl.
}
,
publisher = {Fischer},
year = {1979},
address = {
Jena
},
url = {
http://slubdd.de/katalog?TN_libero_mab2
}
}