1. M. I. Kadec, “On the distribution of points of maximal deviation in the approximation of continuous functions by polynomials,” Usp. Mat. Nauk, 15, 199–202 (1960).
2. P. B. Borwein, A. Kroó, R. Grothmann, and E. B. Saff, “The density of alternation points in rational approximation,” Proc. Amer. Math. Soc., 105, 881–888 (1989).
3. A. Kroó and F. Peherstorfer, “On the asymptotic distribution of oscillation points in rational approximation,” Anal. Math., 19, 225–232 (1993).
4. D. Braess, D. S. Lubinsky, and E. B. Saff, “Behavior of alternation points in best rational approximation,” Acta Appl. Math., 33, 195–210 (1993).
5. H.-P. Blatt, R. Grothmann, and R. K. Kovacheva, “On the distribution of alternation points in uniform rational approximation,” Compt. Rend. Acad. Bulg. Sci., 55, No. 8, 5–8 (2002).