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INFLUENCE OF SUPPLY AND DEMAND FACTORS AT THE DEVELOPMENT O..:

Natalia B. Safronova ; Alexey R. Urubkov ; Alexey S. Budakov.
http://www.sjm06.com/SJM%20ISSN1452-4864/11_2_2016_May_149_319/11_2_2016_261_273.pdf.  , 2016