00511naa#a2200157#i#450# EN\AUS PUBLISHERS\bibl\5391 20240825102442.7 20211004b2021####ek#y0engy0150####ca RU EXPERIMENTAL STUDY OF THE STATE OF THE VOICE UNIVERSITY TEACHERS Conference article/thesis Melbourne AUS PUBLISHERS 2021 6 с. Conference article/thesis local Larina Elena Anatolievna Garkusha Natalia Victorovna w-science.com