Werf, D. v. d., Werf, D. P., Isaac, C. A., Baker, C. J., Mortensen, T., Charlton, M., & Isaac, A. (2012). Compression of positron clouds using rotating wall electric fields. Hyperfine Interactions, 212(1-3), pp. 125-132. doi:10.1007/s10751-011-0384-7

Werf, Dirk van der, Dirk Peter Werf, Christopher Aled Isaac, Christopher John Baker, Timothy Mortensen, Michael Charlton, and Aled Isaac. "Compression of Positron Clouds Using Rotating Wall Electric Fields." Hyperfine Interactions 212, no. 1-3 (2012): 125-132.

Werf, Dirk van der, et al. "Compression of Positron Clouds Using Rotating Wall Electric Fields." Hyperfine Interactions 212.1-3 (2012): 125-132.