Estimates of linear forms and polynomials in polyadic numbers
V. G. Chirskiĭ

References
1.	Postnikov A. G., Vvedenie v analiticheskuyu teoriyu chisel, Nauka, M., 1971
2.	Pontryagin L. S., Nepreryvnye gruppy, Nauka, M., 1984
3.	Novoselov E. V., “Topologicheskaya teoriya delimosti tselykh chisel”, Uchen. zap. Elabuzh. gos. ped. in-ta, 3 (1960), 3–23