Harvey L. Curtis
Scientific Papers of The Bureau of Standards No. 470: A Method for The Accurate Measurement of Short-Time Intervals - USA Government Printing Office 1923 - 363-375 26 cm
1923
English
General
Scientific Papers of The Bureau of Standards No. 470: A Method for The Accurate Measurement of Short-Time Intervals - USA Government Printing Office 1923 - 363-375 26 cm
1923
English
General