Werf, D. v. d., Jørgensen, L., Amoretti, M., Bonomi, G., Bowe, P., Canali, C., . . . Yamazaki, Y. (2005). New Source of Dense, Cryogenic Positron Plasmas. Physical Review Letters, 95(2), . doi:10.1103/PhysRevLett.95.025002

Werf, Dirk van der, et al. "New Source of Dense, Cryogenic Positron Plasmas." Physical Review Letters 95, no. 2 (2005).

Werf, Dirk van der, et al. "New Source of Dense, Cryogenic Positron Plasmas." Physical Review Letters 95.2 (2005).