found: His Argument of Magda, 1896: t.p. (H. Sudermann) [Info. from InU]
found: His L'honneur, 1901: (M. Sudermann) [Info. from InU]
found: His Jaunibas Sapn̦i, 1933: t.p. (Herman Zuderman) [Info. from InU]
found: His La princessa lontana, 1925: t.p. (Ermanno Sudermann) [Info. from InU]
found: His Song of songs, 1909: t.p. (Herman Sudermann) [Info. from InU]
found: His Joninės, 1912: t.p. (G. Sudermann)
found: Schiller, C. Bilinguismus, c2000: t.p. (Hermann Sudermann) p. 14 (1857-1927 [sic]; b. in Matzicken, Kreis Heydekrug, in midst of Lithuanian-speaking area)
found: Literaturlex., c1991: v. 11 (Sudermann, Hermann; b. Sept. 30, 1857, in Matzikken, E. Prussia; d. Nov. 21, 1928, in Berlin; narrative writer, dramatist)
found: Zuderman i Rossii͡a, 2004: t.p. verso (Germana Zudermana)
found: Magda, 1902 DLC copy theater program, Columbia Theatre, Washington, D.C. performance (by Hermann Sunderman)
found: Internet Broadway database, March 8, 2012 (Hermann Sudermann; b. Sept 30, 1857 Matziken, East Prussia; d. Nov. 21, 1928 Berlin, Germany; Male; Writer, Source Material)