TY - CONF AU - Rosenband, Till AU - Itano, Wayne AU - Schmidt, P. AU - Hume, David AU - Koelemeij, Jeroen AU - Bergquist, James AU - Wineland, David C2 - 20^uth^ European Frequency and Time Forum (EFTF) , Braunschweig, GE DA - 2006-01-01 LA - en PB - 20^uth^ European Frequency and Time Forum (EFTF) , Braunschweig, GE PY - 2006 TI - Blackbody radiation shift of the 27Al+ 1S0 - 3P00 transition ER -