Sulyak Sergey G. «I.P. Filevich and Carpathian Rus. Part 1. Biography» // Rusin 2020. №62 C.32-49
Penrov Alexey Leonidovich «Zadachi karpatorusskoi istoriografii [The Objectives of the Carpathian-Russian Historiography]» // Rusin Journal Library 2019. №1 (10) C.37-51
Sulyak Sergey G. «Elizaveta Ivanovna de Witte and Carpathian Rus» // Rusin 2020. №60 C.61-96
Sulyak Sergey G. «Journal “Free Word: Carpatho-Russian Monthly” as an Important Source on the History of Subcarpathian Rus in the Inter-War Period» // Rusin 2019. №57 C.195-229
