@incollection{Palmer2011,
  author    = {Nigel F. Palmer},
  title     = {'Turning many to righteousness' : Religious didacticism in the ›Speculum humanae salvationis‹ and the similitude of the oak tree},
  booktitle = {Dichtung und Didaxe : Lehrhaftes Sprechen in der deutschen Literatur des Mittelalters, Berlin ; New York, NY : de Gruyter, 2009. ISBN: 978-3-11-021898-5, S. 345-368},
  editor    = {Henrike L{\"a}hnemann and Sandra Linden},
  isbn      = {978-3-11-021898-5},
  year      = {2011},
}