TY - JOUR AU - Christopher Oates AU - F Bondu AU - Richard Fox AU - Leo Hollberg C2 - European Physical Journal D DA - 1999-01-01 LA - en M1 - 7 PB - European Physical Journal D PY - 1999 TI - A Diode-Laser Optical Frequency Standard Based on Laser-Cooled Ca Atoms: Sub-kilohertz Spectroscopy by Optical Shelving Detection UR - https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=105042 ER -