[1] BUCK R. C.: The measure theoretic approach to density. Amer. J. Math. LXVIII (1946), 560-580. MR 0018196 | Zbl 0061.07503

[2] DINCULEANU N.: Vector Measures. VEB Deutscher Verlag der Wissen, Berlin, 1966 MR 0206189 | Zbl 0647.60062

[3] ERDÖS P., NATHANSON M. B., SÁRKÖZY A.: Sumsets containing infinite arithmetic progressions. J. Number Theory 28 (1988), 159-166. MR 0927657 | Zbl 0633.10047

[4] HARDY G. H., WRIGHT E. M.: An Introduction to the Theory of Numbers. 3rd ed., Oxford, 1954. MR 0067125 | Zbl 0058.03301

[5] MAHARAM D.: Finitely additive measures on the integers. Sankhya: The Indian J, Stat. Ser. A 38 (1976), 44-59. MR 0473132 | Zbl 0383.60008

[6] PAŠTÉKA M.: Some properties of Buck's measure density. (To appear.). Zbl 0761.11003

[7] SIERPIŃSKI W.: Elementary Theory of Numbers. PWN, Warszawa, 1964. MR 0175840 | Zbl 0122.04402

[8] SIKORSKI R.: Funkcje rzeczywiste I. PWN, Warszawa, 1958. MR 0105468

[9] SZEMEREDI E.: On sets of integers containing no k elements in arithmetic progression. Acta Arithm. 27 (1975), 199-245. MR 0369312