Walther, Herbert Laser Physics, Max Planck Institute of Quantum Optics, Max Planck Society;
Walther, H. (2002). Cavity QED - experiments with atoms and ions. In F. De Martini, & C. Monroe (Eds.), Experimental Quantum Computation and Information. Proceedings of the International School of Physics "Enrico Fermi", Course CXLVIII (pp. 87-100). Amsterdam: IOS Press.