1. Cvetković, Lj.: On the nonsingularity of interval matrices. In: Conference on Applied Mathematics (Bohte, Z., ed.), pp. 27–32. Ljubljana: University of Ljubjana, Institute of Mathematics, Physics and Mechanics 1986.
2. Cvetković, Lj., Herceg, D.: Convergence theory for AOR method. Journal of Computational Mathematics (to appear).
3. Cvetković, Lj., Herceg, D.: An improvement for the area of convergence of the AOR method. Anal. Numer. Theor. Approx.16, 109–115 (1987).
4. Hadjidimos, A.: Accelerated overrelaxation method. Math. Comp.32, 149–157 (1978).
5. Neumaier, A.: New techniques for the analysis of linear interval equations. Linear Algebra and its Applications58, 273–325 (1984).