Sanjari, M., Hülsmann, P., Nolden, F., Schempp, A., Wu, J., Atanasov, D., et al. (2013). A resonant Schottky pickup for the study of highly charged ions in storage rings. Physica Scripta T, 156: 014088, pp. 1-3. doi:10.1088/0031-8949/2013/T156/014088.