TY - GEN AU - Wolfgang Wiese C2 - Special Publication (NIST SP), National Institute of Standards and Technology, Gaithersburg, MD DA - 2001-01-01 LA - en PB - Special Publication (NIST SP), National Institute of Standards and Technology, Gaithersburg, MD PY - 2001 TI - Atomic Energy Levels and Other Spectroscopic Data ER -