TY - CONF AU - Jon Shirley AU - Robert Drullinger C2 - 1994 Conference on Precision Electromagnetic Measurements , Boulder, CO DA - 1994-01-01 LA - en PB - 1994 Conference on Precision Electromagnetic Measurements , Boulder, CO PY - 1994 TI - Zeeman Coherences and Dark States in Optically Pumped Cesium Frequency Standards ER -