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Ptakh G.K. ![](/mail.php?mail=ptah2003@list.ru)
![Ptakh G.K. Ptakh G.K.](/authors/no.jpg)
PTAKH Gennady Konstantinovich — Doctor of Science (Eng.), Professor, Chief Designer. LLC “SPE “Mir” (346400, Novocherkassk, Rostov region, Russian Federation, Prosveshcheniya Str., Bldg. 155a, office 25, e-mail: ptah2003@list.ru).
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