Retraction note
https://doi.org/10.21686/2500-3925-2018-2-91-3
For citations:
article E. Retraction note. Statistics and Economics. 2018;15(2):91. (In Russ.) https://doi.org/10.21686/2500-3925-2018-2-91-3
https://doi.org/10.21686/2500-3925-2018-2-91-3
article E. Retraction note. Statistics and Economics. 2018;15(2):91. (In Russ.) https://doi.org/10.21686/2500-3925-2018-2-91-3