Піскунов, О.В. and Тищенко, К.А. 2018. Methodological foundations of the comparative-historical studies of Ukrainian linguists of the 70’s of the ХІХth century – 30’s of the ХХth century. The Journal of V. N. Karazin Kharkiv National University. Series “Philology”. 77 (Jan. 2018), 21-24.