T. L. Zapf

Capacitor Calibration by Step-Up Methods

T. L. Zapf, T. Zapf, 1960 .

An International Comparison of Inductive Voltage Divider Calibrations at 400 and 1000 Hz

W. C. Sze, T. L. Zapf, A. F. Dunn, 1965 .

Calibration of inductance standards in the Maxwell-Wien bridge circuit

T. L. Zapf, 1961 .

Precise comparison method of testing alternating-current watthour meters

T. L. Zapf, A. W. Spinks, 1954 .