Zenzinov N.A.,  Ryzhak S.A. Vydayushchiesya inzhenery i uchenye zheleznodorozhnogo transporta./Zenzinov N.A.,  Ryzhak S.A. Distinguished railway engineers and scientists. In Russian - landofmagazines.com

TransliterationZenzinov N.A., Ryzhak S.A. Vydayushchiesya inzhenery i uchenye zheleznodorozhnogo transporta.

In EnglishZenzinov N.A., Ryzhak S.A. Distinguished railway engineers and scientists. In Russian

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