TY - CONF AU - Heavner, Thomas AU - Jefferts, Steven AU - Dunn, G C2 - CPEM ''98 , Washington, DC DA - 1998-01-01 LA - en PB - CPEM ''98 , Washington, DC PY - 1998 TI - Precision Measurement of the Atomic Mass of 6Li Using a Penning Ion Trap Mass Spectrometer ER -