TY - ICOMM AU - Coursey, J AU - Dragoset, Robert C1 - http://physics.nist.gov/Comp C2 - http://physics.nist.gov/Comp DA - 1999-01-01 LA - en PB - http://physics.nist.gov/Comp PY - 1999 TI - Atomic Weights and Isotopic Compositions (version 1.0) ER -