TY - JOUR AU - Schwall, Robert AU - Zilz, David AU - Power, Jeffrey AU - Burroughs, Charles AU - Dresselhaus, Paul AU - Benz, Samuel C2 - IEEE Transactions on Applied Superconductivity DA - 2011-02-17 LA - en M1 - 21 PB - IEEE Transactions on Applied Superconductivity PY - 2011 TI - Practical Operation of Cryogen-free Programmable Josephson Voltage Standards UR - https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=906446 ER -