Retraction note
https://doi.org/10.21686/2500-3925-2018-2-91-1
For citations:
article E. Retraction note. Statistics and Economics. 2018;15(2):91. (In Russ.) https://doi.org/10.21686/2500-3925-2018-2-91-1
https://doi.org/10.21686/2500-3925-2018-2-91-1
article E. Retraction note. Statistics and Economics. 2018;15(2):91. (In Russ.) https://doi.org/10.21686/2500-3925-2018-2-91-1