Lea, S.; Lampton, M. (1972). "The theory of maximally flat loudspeaker systems". IEEE Transactions on Audio and Electroacoustics. 20 (3). IEEE: 200–203. doi:10.1109/TAU.1972.1162374.
Tie, Suk Sien; Kirkby, David; Martini, Paul; Poppett, Claire; Pappalardo, Daniel; Schlegel, David; Shover, Jonathan; Guy, Julien; Fanning, Kevin; Honscheid, Klaus; Lampton, Michael; Jelinsky, Patrick; Besuner, Robert; Zhang, Kai; Brooks, David; Doel, Peter; Duan, Yutong; Gastañaga, Enrique; Kehoe, Robert; Landriau, Martin; Levi, Michael; Prada, Francisco; Tarle, Gregory (2020). "The DESI sky continuum monitor system". In Evans, Christopher J.; Bryant, Julia J.; Motohara, Kentaro (eds.). Ground-based and Airborne Instrumentation for Astronomy VIII. Vol. 11447. p. 187. arXiv:2101.11736. Bibcode:2020SPIE11447E..85T. doi:10.1117/12.2561436. ISBN9781510636811.