Voeninzhener Pershin V.N. Ustanovlenie formuly dlya rascheta derivatsii pri bolshikh nachalnykh skorostyakh snaryada i bolshikh uglakh brosaniya./Military engineer V.N. Pershin Establishing a formula for calculating derivatives at high initial velocities of projectiles and high throwing angles. In Russian - landofmagazines.com

TransliterationVoeninzhener Pershin V.N. Ustanovlenie formuly dlya rascheta derivatsii pri bolshikh nachalnykh skorostyakh snaryada i bolshikh uglakh brosaniya.

In EnglishMilitary engineer V.N. Pershin Establishing a formula for calculating derivatives at high initial velocities of projectiles and high throwing angles. In Russian

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