Ekonomova Elina Konstantinovna. Team-work of a singer and an accompanist in professional training a vocal student : к.пед.н. : spec.. 13.00.04 - Теорія і методика професійної освіти : presented. 2002-12-07; popup.evolution: .; South Ukrainian State Pedagogical University. – , 0402U003767.

Updated: 2026-11-11