Kovalenko K.

Kovalenko K. Some methods of the lexicographical work used by compilers of Russian handwritten lexicons 153–159 (Vol. 1. 2018)
Kovalenko K. “An Explanation of Problematic Words in Literature” in appendix to the Ladder of Divine Ascent (Russian National Library, Solovki collection, 302/322) 371–411 (Vol. 3. 2020)