1.
Mapping conjugate gradient algorithms for neutron diffusion applications onto SIMD, MIMD, and mixed-mode machines
by SO, J. J. E
International journal of parallel programming, 1998, Vol.26 (2), p.183-207

2.
Parallel computation and numerical optimisation
by Patel, K. D.
Annals of operations research, 1984-06, Vol.1 (2), p.135-149
