TY - JOUR AU - Robert Drullinger AU - Jon Shirley AU - John Lowe AU - D Glaze C2 - IEEE Transactions on Instrumentation and Measurement DA - 1993-01-01 LA - en M1 - 42 PB - IEEE Transactions on Instrumentation and Measurement PY - 1993 TI - An Error Analysis of the NIST Optically Pumped Primary Frequency Standard ER -