found: Neueingerichtetes Zwergenkabinett, c1981:p. 1 (der in Augsburg tätige Stecher Elias Baeck (1680-1747)) p. 114 (Elias Baeck gen. Heldenmuth (geb. 1669))
found: Archiducatus Austriæ superioris et inferioris, 173-?:map recto (Elias Bæck a. H. sculps) slipcase (Elias Bäck a. H. sc.)
found: Thieme Becker(Baeck, Elias, gen. Heldenmuth; b. 1679, d. 1747; signed some of his works Elias Baeck alias Heldenmuth)
found: Tooley's dict. of mapmakers, 1979(Baeck [Bäck] Elias (1679-1747), painter and engraver of Augsburg)
found: NUC(Baeck, Elias, 1679-1747)
