TY - JOUR AU - Gretchen Campbell AU - William Phillips C2 - Philosophical Transactions of the Royal Society A-Mathematical Physical and Engineering Sciences DA - 2011-09-19 DO - https://doi.org/10.1098/rsta.2011.0229 LA - en M1 - 369 PB - Philosophical Transactions of the Royal Society A-Mathematical Physical and Engineering Sciences PY - 2011 TI - Ultracold Atoms and Precise Time Standards ER -