Isaakij (Sergeev), Hierodeacon

1. Liturgical tradition of the Valaam Monastery: from 1989 to present, Theological Collection of Tambov Theological Seminary No. 2 (23) (2023)

2. The worship life of the Valaam Monastery in 1717–1782 according to available sources and its significance for the subsequent period, Theological Collection of Tambov Theological Seminary No. 3 (28) (2024)

3. The origin of the Typicon of the Valaam Skete of All Saints (1789-1949), Theological Collection of Tambov Theological Seminary No. 4 (33) (2025)