1. H. Minkowski, Geometrie der Zahlen (Leipzig-Berlin, 1910).
2. T. Bonnesen and W. Fenchel, Theory of Convex Bodies (BCS Associates, Moscow, Idaho, 1987).
3. V. A. Sadovnichii, Operator Theory (Izd. Moscov. Univ., Moscow, 1986) [in Russian].
4. K. Leichtweiss, Konvexe Mengen (Springer-Verlag, Berlin, 1980; Nauka, Moscow, 1985).
5. V. I. Diskant, “Refinement of the isodiametral inequality in Minkowski geometry,” Matem. Fizika, Analiz, Geometriya 1(2), 216–226 (1994).