* {{cite book|last1=Klipp|first1=Edda|last2= Liebermeister|first2=Wolfram|last3=Wierling|first3=Christoph|last4=Kowald|first4=Axel|title=Systems Biology - A Textbook, 2nd edition|isbn=978-3-527-33636-4|publisher=Wiley|year=2016}} | * {{cite book|last1=Klipp|first1=Edda|last2= Liebermeister|first2=Wolfram|last3=Wierling|first3=Christoph|last4=Kowald|first4=Axel|title=Systems Biology - A Textbook, 2nd edition|isbn=978-3-527-33636-4|publisher=Wiley|year=2016}} |