[1] A. S. Besicovitch, S. J. Taylor: On the set of distances between points of a general metric space. Proc. Camb. Phi. Soc. 48 (1952), 209–214. DOI 10.1017/S0305004100027572 | MR 0690635

[2] E. Boardman: On extensions of the Steinhaus theorem for distance sets and difference sets. Jour. Lond. Math. Soc. (2) 5 (1972), 729–739. DOI 10.1112/jlms/s2-5.4.729 | MR 0311875 | Zbl 0254.28001

[3] B. K. Lahiri: On transformations of sets of positive linear measure. Riv. Univ. Parma 4 (1981), 7, 43. MR 0671353 | Zbl 0489.28001

[4] M. E. Munroe: Introduction to Measure Theory and Integration. Addison-Wesley, 1959.

[5] C. A. Rogers: Hausdorff Measure. Cambridge University Press, 1970. MR 0281862

[6] M. S. Ruziewicz: Contribution à l’etude des ensembles de distances de points. Fund. Math. 7 (1925), 141–143. DOI 10.4064/fm-7-1-141-143

[7] H. Steinhaus: Sur les distances des points des ensembles de measure positive. Fund. Math. 1 (1920), 93–104. DOI 10.4064/fm-1-1-93-104