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Ryazantseva E.A. ![](/mail.php?mail=alenkasea@ro.ru)
![Ryazantseva E.A. Ryazantseva E.A.](/authors/no.jpg)
RYAZANTSEVA Elena Aleksandrovna — Engineer of the 1st Category. JSC Design Bureau of Chemical Automation (394055, Voronezh, Russian Federation, Voroshilov St., Bldg. 20, e-mail: alenkasea@ro.ru).
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