Tsiolkovsky K., Soprotivlenie vozduha i skoryj poezd./Tsiolkovsky K., Air resistance and fast train. Kaluga. In Russian. - landofmagazines.com

TransliterationTsiolkovsky K., Soprotivlenie vozduha i skoryj poezd.

In EnglishTsiolkovsky K., Air resistance and fast train. Kaluga. In Russian.

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