Novel Digital Voltage Ramp Generator for Use in Precision Current Sources in the Picoampere Range by Willenberg, G.-D., Tauscher, H.N.

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Uncertainty assessment of Si molar mass measurements by Mana, G., Massa, E., Valkiers, S., Willenberg, G.-D.

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A traceable precision current source for currents between 100 aA and 10 pA by Willenberg, G.-D., Tauscher, H.N., Warnecke, P.

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Progress Towards the Electron Counting Capacitance Standard at PTB by Scherer, H., Lotkhov, S.V., Willenberg, G.-D., Camarota, B.

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Steps toward a capacitance standard based on single-electron counting at PTB by Scherer, H., Lotkhov, S.V., Willenberg, G.-D., Zorin, A.B.

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Comparison of MIKES and PTB precision current sources based on capacitor charging by Iisakka, I., Willenberg, G., Seppala, J., Manninen, A.

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Frequency dependence of gas-dielectric capacitors used in sub-nA reference current generators by Giblin, S P, Willenberg, G, Fletcher, N E

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Novel digital voltage ramp generator for picoammeter calibrations by Willenberg, G.-D., Tauscher, H.N.

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Recent progress in the setup of the electron counting capacitance standard at PTB by Scherer, H., Lotkhov, S.V., Willenberg, G.-D.

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Stable cryogenic vacuum capacitor for single-electron charging experiments by Willenberg, G.D., Warnecke, P.

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Counting electrons one by one-overview of a joint European research project by van den Brom, H.E., Kerkhof, O., Lotkhov, S.V., Bogoslovsky, Sergey.A., Willenberg, G.-D., Scherer, H., Zorin, A.B., Pedersen, S., Kristoffersson, C., Aassime, A., Delsing, P., Taslakov, M.A., Ivanov, Z., Nilsson, H., Giblin, S., Kleinschmidt, P., Hof, C., Eichenberger, A.L., Overney, F., Jeanneret, B., Geneves, G., Feltin, N., Devoille, L., Gay, F., Piquemal, F.P.M.

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Three-dimensional positioning setup for magnetometer sensors by Willenberg, G.-D., Weyand, K.

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Realization of the Ampere Based on High- and Low-Field NMR Experiments by Weyand, K, Willenberg, G D

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Far infrared cw raman lasing in NH3 by Willenberg, G.D., Hübner, U., Heppner, J.

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Far-infrared laser emission by microwave-infrared-far-infrared three-photon interaction in NH3 by Weiss, C., Willenberg, G.-D., Won, J., Telle, H.

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FIR NH3 cascade laser excited by a Q-switch laser by Won, J. W., Willenberg, G. D.

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Steps Towards a Capacitance Standard Based on Single-Electron Counting at PTB by Scherer, H., Lotkhov, S.V., Willenberg, G.D., Zorin, A.B.

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The Proposed Ampere Experiment at the PTB by Weyand, Kurt, Willenberg, Gerd-Dietmar

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Novel cryogenic capacitor for single-electron charging experiments by Willenberg, G.-D., Warnecke, P.

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A traceable precision current source for currents between 100 aA and 10 pA by Willenberg, G.-D., Tauscher, H.N., Warnecke, P.

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