Keitel, Christoph H. Division Prof. Dr. Christoph H. Keitel, MPI for Nuclear Physics, Max Planck Society;
http://link.aps.org/doi/10.1103/PhysRevLett.85.4458 (Publisher version)
Morigi, G., Eschner, J., & Keitel, C. H. (2000). Ground State Laser Cooling Using Electromagnetically Induced Transparency. Physical Review Letters, 85(21), 4458-4461. doi:10.1103/PhysRevLett.85.4458.