1. Blokhuis, A., Wilbrink, H.A.: Alternative proof of Sine’s theorem on the size of a regular polygon in ℝ
k
with the ℓ
∞
-metric. Discrete Comput. Geom. 7, 433–434 (1992)
2. Bousch, T.: La condition de Walters. Ann. Sci. Ec. Norm. Supér. 34, 287–311 (2001)
3. Fathi, A.: Théorème KAM faible et théorie de Mather sur les systèmes lagrangiens. C. R. Acad. Sci. Sér. I Math. 324, 1043–1046 (1997)
4. Floría, L.M., Griffiths, R.B.: Numerical procedure for solving a minimization eigenvalue problem. Numer. Math. 55, 565–574 (1989)
5. Goebel, K., Kirk, W.A.: Iteration processes for nonexpansive mappings. In: Singh, S.P., Thomeier, S., Watson, B. (eds.) Topological Methods in Nonlinear Functional Analysis. Proceedings of Special Session on Fixed Point Theory and Applications Held in Toronto 1982, Contemporary Mathematics, vol. 21, pp. 115–123. AMS, Providence (1983)