Iz istorii ėkonomicheskoĭ i obshchestvennoĭ zhizni Rossii : Sbornik stateĭ k 90-leti︠i︡u akademika Nikola︠i︡a Mikhaĭlovicha Druzhinina - Druzhinin, Nikolaĭ Mikhaĭlovich, 1886-; Cherepnin, Lev Vladimirovich (Nauka, 1976)