Turkevych, O. ‚ÄúProcesses of Acquisition a Second Language and Learning a Foreign Language: Terminology Standardisation and Harmonization‚ÄĚ. PSYCHOLINGUISTICS, Vol. 25, no. 2, Apr. 2019, pp. 307-22, doi:10.31470/2309-1797-2019-25-2-307-322.