The Golden Ring (Ukrainian: Золотий обруч, romanized: Zolotyy obruch), also called Zachar Berkut, is an opera in four acts and nine scenes by the Ukrainian composer Borys Lyatoshynsky. The libretto was written by the poet Jacob Mamontov [uk], and was based on Zachar Berkut, a short story by the Ukrainian writer Ivan Franko. The work was premiered in Odessa on 26 March 1930. Written in 1929, it was the earliest music-drama in Ukrainian.^[1]

• Baley, Virko (2001). "Lyatoshyns′ky, Borys Mykolayovych". Grove Music Online (8th ed.). Oxford University Press. ISBN 978-1-56159-263-0.

• Baley, Virko (2002). "Zolotyy obruch ('The Golden Ring')". Grove Music Online (8th ed.). Oxford University Press. ISBN 978-1-56159-263-0.
• Izvarina, Elena (2016). "Опера "Золотий Обруч" Б. Лятошинського В Контексті Універсалій Культури: Зміна Смислів Інтерпретації" [B. Lyatoshynsky's opera ‘’The Golden Ring’’ in the context of the universals of culture: changing the meanings of interpretation] (PDF). The Culturology Ideas (in Ukrainian and English) (9): 123–127. ISSN 2311-9489.

• Myroslava’s aria– score and parts from Lviv National Opera