{{sfn | Berg | Stryer | Tymoczko | 2012 | p=}}

* {{cite book | last=Berg | first=Jeremy M. | last2=Stryer | first2=Lubert | last3=Tymoczko | first3=John L. | title=Stryer Biochemie | publisher=Springer Spektrum | publication-place=Berlin Heidelberg | date=2012-10-13 | isbn=978-3-8274-2988-9 | language=de}}

<ref name="p726">{{cite book | last=Berg | first=Jeremy M. | last2=Stryer | first2=Lubert | last3=Tymoczko | first3=John L. | title=Stryer Biochemie | publisher=Springer Spektrum | publication-place=Berlin Heidelberg | date=2012-10-13 | isbn=978-3-8274-2988-9 | language=de | page=}}</ref>