https://semanticscholar.org/paper/6394230715bad84ce2316b45875fe9c9911fb28d ^ P. A. Lindsey; R. Alexander; L. G. Frank; A. Mathieson; S. S. Roma?ach (August 2006)
April 2022閲覧。 “Russian forces completely vacated Sumy Oblast.” ^ Hilsum, Lindsey (27 April 2022). “'I was beaten with an axe': Fleeing Russian-occupied