@book{id_2152,
author = "Kögel-Knabner, Ingrid",
title = "Humus in Böden",
year = "2009",
address = "München",
publisher = "Pfeil",
series = "Rundgespräche der Kommission für Ökologie/Forum Ökologie",
volume = "35",
isbn = "978-3-89937-091-1",
}