Precision determination of the density of a single crystal silicon sphere and evaluation of the Avogadro constant.
Michael J. KennyAchim J. LeistnerChristopher J. WalshKitty FenWalter GiardiniLeszek S. WielunskiRoger P. NetterfieldBradley R. WardPublished in: IEEE Trans. Instrum. Meas. (2001)