TY - JOUR AU - Baker, Jonathan AU - Forrey, R AU - Jeziorska, M AU - Morgan, J C2 - Physical Review Letters DA - 2008-10-16 14:10:14 LA - en PB - Physical Review Letters PY - 2008 TI - Bethe Logarithms for the 11S, 21S, and 23S States of Helium and Helium-like Ions ER -