@inbook {bethge2013elementary, title = {Beam Feedback Systems}, booktitle = {Elementary Particles - Accelerators and Colliders}, series = {Landolt-Bornstein: Numerical Data and Functional Relationships in Science and Technology - New Series / Elementary Particles, Nuclei and Atoms}, number = {vol.~21}, year = {2013}, pages = {6 p.}, publisher = {Springer London, Limited}, organization = {Springer London, Limited}, isbn = {978-3-642-23052-3}, url = {http://www.springer.com/physics/book/978-3-642-23052-3}, author = {Steinhagen, Ralph J}, editor = {Stephen Myers, Herwig Schopper} }