Pysʹma K. N. Ustyi︠a︡novycha.
Publisher: Nakl. Sushkevycha
Published: 1984
Place of publication: U Lʹvovi
Language: ukr
Other titles: Oleh Svi︠a︡toslavych Ovrutsʹkyĭ; Svi︠a︡toslav Khorobryĭ
Notes: Photocopy. Toronto: University of Toronto Library Photoduplication Services Unit, 1984.

From the library of John Luczkiw.
Table of contents: value: Ch. 2.  Oleh Svi︠a︡toslavych Ovrutsʹkyĭ.  Svi︠a︡toslav Khorobryĭ.