1. Whittall/Sutton Chapter 4; Garcia‐Junceda Chapter 1; Sheldon/Arends/Ha‐nefeld p. 269 280;
2. Gotor/Alfonso/Garcia‐Urdiales Chapter 4 5; Christmann/Bräse; Buchholz/Kasche/ Bornscheuer p.133;
3. Combination of Enzymes and Metal Catalysts. A Powerful Approach in Asymmetric Catalysis