Comparison of four QHR systems within one month using a temperature and pressure stabilized 100-Ω resistor.
Alexandre SatrapinskiHeikki SeppäBernd SchumacherPeter WarneckeFrançois DelahayeWilfrid PoirierFrançois P. M. PiquemalPublished in: IEEE Trans. Instrum. Meas. (2001)