1. S. F. Levin, Reliability of Engineering Software [in Russian], Znanie, Kiev (1989).
2. F. P. Tarasenko, Nonparametric Statistics [in Russian], Izd. TGU, Tomsk (1976).
3. S. P. Levin, Statistical Theory of Signal Transmission and Reception [in Russian], Vol. 1, NSK Akad. Nauk SSSR, Moscow (1981), p. 90.
4. Problems of Cybernetics [in Russian], No. 94, NSK Akad. Nauk SSSR, Moscow (1982).
5. S. F. Levin, Methods of Identification Theory in Measurement Engineering and Metrology [in Russian], CNIIM, Novosibirsk (1989).