TY - CONF AU - El, Darine AU - Schlamminger, Stephan AU - Newell, David AU - Liu, Ruimin AU - Williams, Edwin AU - Pratt, Jon C2 - Conference on Precision Electrical Measurements (CPEM) 2012, Conference Digest, National Harbor, MD DA - 2012-07-01 LA - en PB - Conference on Precision Electrical Measurements (CPEM) 2012, Conference Digest, National Harbor, MD PY - 2012 TI - Towards a fixed value of the Planck constant: reproducibility and an updated NIST-3 watt balance ER -