[1] T. Apostol: Mathematical Analysis, second edition. Addison-Wesley, Reading Massachusetts, 1974. MR 0344384

[2] P. Billingsley: Ergodic Theory and Information. Wiley, New York, 1965. MR 0192027 | Zbl 0141.16702

[3] P. Billingsley: Measure and Probability. Wiley, New York, 1979. MR 0534323

[4] J. P. Kahane: Some Random Series of Functions. Heath, Lexington Massachusetts, 1968. MR 0254888 | Zbl 0192.53801

[5] S. Kurepa: Note on the difference set of two measurable sets in ${\mathbb R}^n. Glasnik Mat. 15 (1960), 99-105. MR 0124456

[6] S. Kurepa: On transformations of measurable sets in $E^n$. Glasnik Mat. 20 (1965), 235-242. MR 0202972

[7] H. I. Miller: On a paper of Saha and Ray. Publ. Inst. Math. 27 (41) (1980), 175- 178. MR 0621949 | Zbl 0472.28003

[8] H. I. Miller: On transformations of sets in ${\mathbb R}^n$. Čas. pěst. mat. 106 (1981), 422-430. MR 0637823

[9] T. Neubrunn T. Saldt: Distance sets, ration sets and certain transformations of set of real numbers. Čas. pěst. mat. 94 (1969), 381-393. MR 0257309

[10] M. Pal: On certain transformations of sets in RN. Acta Facult. Rerum Nat. Univ. Comenianae Mathematica, XXIX (1974), 43-53. MR 0377024

[11] S. Piccard: Sur les ensemble de distances des ensembles de points d'un espace Euclidean. Neuchatel, 1933.

[12] H. Steinhaus: Sur les distances des points des ensembles de measure positive. Fund. Math. 1 (1920), 93-104.