TY - CONF AU - W Lee AU - Jon Shirley AU - F Walls AU - Robert Drullinger C2 - 1995 IEEE Int. Freq. Cont. Symp. , San Francisco, CA, USA DA - 1995-01-01 00:01:00 LA - en PB - 1995 IEEE Int. Freq. Cont. Symp. , San Francisco, CA, USA PY - 1995 TI - Systematic Errors in Cesium Beam Frequency Standards Introduced by Digital Control of the Microwave Excitation, ER -