TY - BOOK AU - Figger,H., ed.. AU - Meschede,D., ed. AU - Zimmermann, C., ed. TI - Laser physics at the limits SN - 3-540-42418-0 PY - 2002/// CY - Berlin PB - Springer KW - Atomic clocks KW - Cold atoms KW - Laser frequency KW - Laser spectroscopy KW - Optical hydrogen clock ER -