Sofia Halechko (English Wikipedia)

Wouters, Nico; Ypersele, Laurence van (23 January 2020). Nations, Identities and the First World War: Shifting Loyalties to the Fatherland. Bloomsbury Academic. p. 122. ISBN 978-1-350-14621-1. Archived from the original on 22 May 2022. Retrieved 20 May 2022.
Katchanovski, Ivan; Kohut, Zenon E.; Nebesio, Bohdan Y.; Yurkevich, Myroslav (11 July 2013). Historical Dictionary of Ukraine. Scarecrow Press. p. 706. ISBN 978-0-8108-7847-1. Archived from the original on 22 May 2022. Retrieved 18 May 2022.
Borodziej, Włodzimierz; Górny, Maciej (April 2021). The Great War in East-Central Europe: Central and Eastern Europe, 1912–1916. Cambridge University Press. p. 182. ISBN 978-1-108-83715-6. Archived from the original on 22 May 2022. Retrieved 18 May 2022.

encyclopediaofukraine.com

"Basarab, Olha". www.encyclopediaofukraine.com. Archived from the original on 22 April 2022. Retrieved 22 April 2022.

forgottengalicia.com

"Country of Roxolania: Ukrainian Women in the First World War – Forgotten Galicia". 22 January 2022. Archived from the original on 3 March 2022. Retrieved 21 April 2022.

oldbid.com

"1917 Officer Cadet Miss Sofia Halechko, Ukrainian Sich Riflemen Legion Official Postcard, USS, UPA Ukrainian Insurgent Army (Type 6h) | oldbid". oldbid.com. Archived from the original on 7 March 2022. Retrieved 30 April 2022.

translate.goog

uamoderna-com.translate.goog

Maryana Baidak (13 October 2016). "Втеча і повернення: українки в лавах Січових стрільців". uamoderna.com (in Ukrainian). Archived from the original on 4 April 2022. Retrieved 21 April 2022.Translation Archived 22 May 2022 at the Wayback Machine

uamoderna.com

Maryana Baidak (13 October 2016). "Втеча і повернення: українки в лавах Січових стрільців". uamoderna.com (in Ukrainian). Archived from the original on 4 April 2022. Retrieved 21 April 2022.Translation Archived 22 May 2022 at the Wayback Machine

ukrainianmuseumlibrary.org

Wolynetz, Lobow (2015). "The Role of Dedicated Ukrainian Women in World War 1" (PDF). The Ukrainian Museum and Library of Stamford. Archived (PDF) from the original on 25 March 2017. Retrieved 30 April 2022.

ukrweekly.com

Burbella, Marion Kushnir (18 June 1978). "Fourth conference of Ukrainian seniors at Soyuzivka" (PDF). The Ukrainian Weekly. p. 7. Archived (PDF) from the original on 12 March 2022. Retrieved 30 April 2022.

web.archive.org

"1917 Officer Cadet Miss Sofia Halechko, Ukrainian Sich Riflemen Legion Official Postcard, USS, UPA Ukrainian Insurgent Army (Type 6h) | oldbid". oldbid.com. Archived from the original on 7 March 2022. Retrieved 30 April 2022.
Wolynetz, Lobow (2015). "The Role of Dedicated Ukrainian Women in World War 1" (PDF). The Ukrainian Museum and Library of Stamford. Archived (PDF) from the original on 25 March 2017. Retrieved 30 April 2022.
"Country of Roxolania: Ukrainian Women in the First World War – Forgotten Galicia". 22 January 2022. Archived from the original on 3 March 2022. Retrieved 21 April 2022.
Wouters, Nico; Ypersele, Laurence van (23 January 2020). Nations, Identities and the First World War: Shifting Loyalties to the Fatherland. Bloomsbury Academic. p. 122. ISBN 978-1-350-14621-1. Archived from the original on 22 May 2022. Retrieved 20 May 2022.
Katchanovski, Ivan; Kohut, Zenon E.; Nebesio, Bohdan Y.; Yurkevich, Myroslav (11 July 2013). Historical Dictionary of Ukraine. Scarecrow Press. p. 706. ISBN 978-0-8108-7847-1. Archived from the original on 22 May 2022. Retrieved 18 May 2022.
Maryana Baidak (13 October 2016). "Втеча і повернення: українки в лавах Січових стрільців". uamoderna.com (in Ukrainian). Archived from the original on 4 April 2022. Retrieved 21 April 2022.Translation Archived 22 May 2022 at the Wayback Machine
"Basarab, Olha". www.encyclopediaofukraine.com. Archived from the original on 22 April 2022. Retrieved 22 April 2022.
Borodziej, Włodzimierz; Górny, Maciej (April 2021). The Great War in East-Central Europe: Central and Eastern Europe, 1912–1916. Cambridge University Press. p. 182. ISBN 978-1-108-83715-6. Archived from the original on 22 May 2022. Retrieved 18 May 2022.
Burbella, Marion Kushnir (18 June 1978). "Fourth conference of Ukrainian seniors at Soyuzivka" (PDF). The Ukrainian Weekly. p. 7. Archived (PDF) from the original on 12 March 2022. Retrieved 30 April 2022.