O's · Olga Saez · Olga Seus · Olga Sike
| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Halychyna: Mizh Skhodom i Zakhodom: narysy istoriï XIX--pochatku XX st | 978-966-02-1314-2 (966-02-1314-X) | 1999 |
| Halychyna: Mizh Skhodom i Zakhodom: narysy istorii, XIX-pochatku XX st | 978-966-02-0386-0 (966-02-0386-1) | 1997 |