9[2]EMEL'YANOV, A F,et al. Calculation of the kinematic error of a harmonic gear transmission with the compliance of its elements taken into account[J]. Russian Engineering Research, 1983 (7):21-25.
10[3]SHUVALOV S A,et al. Calculation of a harmonic gear transmission on a computer, in book :Work capacity and reliability of machine components[J]. Tr. MVTU, 1980, 333: 51-72.