Bibliography and Further Links

• Johannes Claßen, diploma thesis (1991, in german): chapter 5, chapter 6
• KIP group for physics at low temperatures - methods - mechanical oscillators
• Dieter Bimberg, Signalverarbeitung mit Lock-In-Verstärker, TU Berlin (in german): PDF
• Ted Masselink, Uwe Mueller, Lock-In-Verstärker, HU Berlin (in german): PDF
• Virtual Lock-in Experiment
• Levenberg-Marquardt algorithm in Wikipedia
• A. Ranganathan, The Levenberg-Marquardt Algorithm: CiteSeer download page