TY - JOUR AU - Christopher Oates AU - E Curtis AU - Leo Hollberg C2 - Optics Letters DA - 2000-01-01 LA - en M1 - 25 PB - Optics Letters PY - 2000 TI - Improved Short-Term Stability of Optical Frequency Standards: Approaching 1 Hz in 1 s with the Ca Standard at 657 nm UR - https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=105041 ER -