1. Fischer EH, Krebs EG (1955) Conversion of phosphorylase b to phosphorylase a in muscle extracts. J Biol Chem 216:121–132
2. Krebs EG, Kent AB, Fischer EH (1958) The muscle phosphorylase b kinase reaction. J Biol Chem 231:73–83
3. Klebl B, Müller G, Hamacher M (2011) Protein kinases as drug targets. Methods and principles in medicinal chemistry, vol 49. Wiley, New York, NY
4. Cohen P (2002) Protein kinases - the major drug targets of the twenty-first century? Nat Rev Drug Discov 1:309–315
5. Wu P, Nielsen ET, Clausen MH (2015) FDA-approved small-molecule kinase inhibitors. Trends Pharmacol Sci 36(7):422–439