TY - BOOK ID - 136146994 TI - Time and frequency : theory and fundamentals AU - Blair, Byron E. AU - United States. PY - 1974 PB - Washington, D.C. : U.S. Dept. of the Commerce, National Bureau of Standards : G.P.O., DB - UniCat KW - Atomic frequency standards. KW - Time measurements. KW - Etalons atomiques de fr equence. KW - Temps KW - Mesure. UR - https://www.unicat.be/uniCat?func=search&query=sysid:136146994 AB - ER -