Title: Pionery raketnoĭ tekhnikí
Subjects: Rocketry
People: Nikolaĭ Ivanovich Kibalʹchich (1853-1881), K. T︠S︡iolkovskiĭ (1857-1935), F. A. T︠S︡ander (1887-1933), I͡Uriĭ V. Kondrati͡uk