Key points are not available for this paper at this time.
J. A. Meijerink, H. A. van der Vorst, An Iterative Solution Method for Linear Systems of Which the Coefficient Matrix is a Symmetric M-Matrix, Mathematics of Computation, Vol. 31, No. 137 (Jan. , 1977), pp. 148-162
Meijerink et al. (Sat,) studied this question.