Media type: E-Article Title: Multifrequency Lock-In Detection With Nonsinusoidal References Contributor: Hintenaus, Peter M.; Trinker, Horst imprint: Institute of Electrical and Electronics Engineers (IEEE), 2013 Published in: IEEE Transactions on Instrumentation and Measurement Language: Not determined DOI: 10.1109/tim.2013.2240095 ISSN: 0018-9456; 1557-9662 Keywords: Electrical and Electronic Engineering ; Instrumentation Origination: Footnote: