found: Geschichte des byzantinischen Staates, 1952:t.p. (von Georg Ostrogorsky)
found: History of the Byzantine state, 1969:t.p. (George Ostrogorsky) CIP ( Ostrogorski, Georgije)
found: LC in WLN, Oct. 27, 1998:(hdg.: Ostrogorski, Georgije; usage: Georg Ostrogorsky; Georgije Ostrogorski; George Ostrogorsky)
found: Brockhaus, 1972(Ostrogorsky, Georg; b. Jan. 19, 1902 in St. Petersburg; active in Breslau, Prague and Belgrade)
found: Wikipedia, Mar. 13, 2019:(Georgy Alexandrovich Ostrogorsky; Georgiĭ Aleksandrovich Ostrogorskiĭ [in Cyrillic]; b. Jan. 19, 1902; d. Oct. 24, 1976)
found: LC database, Mar. 13, 2019:(usage: Georg Ostrogorsky (6 times), Georgije Ostrogorski (twice), George Ostrogorsky (twice), Georges Ostrogorsky (once))