TY - CHAP AU - Michael Lombardi C2 - The Measurement, Instrumentation, and Sensors Handbook (2nd edition), CRC Press, Boca Raton, FL DA - 2014-02-03 LA - en M1 - Ch. 42 PB - The Measurement, Instrumentation, and Sensors Handbook (2nd edition), CRC Press, Boca Raton, FL PY - 2014 TI - Frequency Measurement ER -