Showing 1 - 3 results of 3 for search 'E. A. Levkova', query time: 0.01s Refine Results
  1. 1
    System analysis of medico-ecological factors of the population reproductive losses in Khabarovsk Region
    by E. A. Levkova, S. Z. Savin
    Published 2017
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  2. 2
    Geoinformation systems in human ecology
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  3. 3
    Modelling problems of a shadow economy on an example of an illegal turnover of psychoactive substances
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