TY - CONF AU - Lombardi, Michael AU - J., AU - Diaz-Munoz, Nelida AU - de, Eduardo C2 - Proceedings of Conference on Precision Electromagnetic Measurements (CPEM), Washington, DC DA - 2012-07-02 LA - en PB - Proceedings of Conference on Precision Electromagnetic Measurements (CPEM), Washington, DC PY - 2012 TI - International time and frequency comparisons in real time: recent results ER -