Dinastii︠a︡ kni︠a︡zeĭ Gagarinykh: primer sluz︠h︡enii︠a︡ Rossii
Trudy i︠u︡bileĭnoĭ nauno-prakticheskoĭ konferent︠s︡ii, posvi︠a︡shchennoĭ 160-letii︠u︡ so dni︠a︡ roz︠h︡denii︠a︡ A.G. Gagarina, pervogo direktora Politekhnicheskogo instituta
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translation: Dynasty of the Gagarin dukes: example of serving Russia - Works of the anniversary scientific and practical conference dedicated to the 160th anniversary of the birth of A.G. Gagarin, first director of the Polytechnic Institute
