Shulyatikov, Vladimir (16 March 2010). "Мария Ветрова в памяти поколений" [Maria Vetrova in the memory of generations]. Gorodnya (in Russian). Archived from the original on 8 January 2021. Retrieved 10 January 2024.
helsinginseurakunnat.fi
Kirkko Helsingissä, Finnish Evangelic-Lutheran Church. "Cathedral".
Shulyatikov, Vladimir (16 March 2010). "Мария Ветрова в памяти поколений" [Maria Vetrova in the memory of generations]. Gorodnya (in Russian). Archived from the original on 8 January 2021. Retrieved 10 January 2024.