{{sfn | e.V. | 2013 | p=}}

* {{cite book | last=e.V. | first=VDI | title=VDI-Wärmeatlas | publisher=Springer Vieweg | publication-place=Berlin Heidelberg | date=2013-04-03 | isbn=978-3-642-19980-6 | language=de}}

<ref name="o234">{{cite book | last=e.V. | first=VDI | title=VDI-Wärmeatlas | publisher=Springer Vieweg | publication-place=Berlin Heidelberg | date=2013-04-03 | isbn=978-3-642-19980-6 | language=de | page=}}</ref>