Palmer, R., Sanz-Navarro, C. F., Smith, R., Kenny, D. J., Pratontep, S., & Palmer, R. E. (2002). Scaling behavior of the penetration depth of energetic silver clusters in graphite. Physical Review B, 65(16), . doi:10.1103/PhysRevB.65.165420

Palmer, Richard, C. F. Sanz-Navarro, Roger Smith, D. J. Kenny, S. Pratontep, and R. E. Palmer. "Scaling Behavior of the Penetration Depth of Energetic Silver Clusters in Graphite." Physical Review B 65, no. 16 (2002).

Palmer, Richard, et al. "Scaling Behavior of the Penetration Depth of Energetic Silver Clusters in Graphite." Physical Review B 65.16 (2002).