For citations:
Troitsky S.A., Troitskaya A.A. Letters from Nadezhda Woytinskaya-Levidova to Wladimir Woytinsky. Observatory of Culture. 2015;(4):76-81. (In Russ.) https://doi.org/10.25281/2072-3156-2015-0-4-76-81
Troitsky S.A., Troitskaya A.A. Letters from Nadezhda Woytinskaya-Levidova to Wladimir Woytinsky. Observatory of Culture. 2015;(4):76-81. (In Russ.) https://doi.org/10.25281/2072-3156-2015-0-4-76-81