found: Work cat.: Rimell, R. Staaken at war, 2007:p. 2, etc. (R-planes) p. 29 (Staaken R-plane)
found: Wikipedia, 26 Oct. 2007under Zeppelin Staaken R.VI (the Zeppelin-Staaken R.VI, a four-engined biplane strategic bomber of World War I, was the most-produced model of the R (Riesenflugzeug) bombers built by Germany)
found: First World War.com, 26 Oct. 2007war in the air, bombers, Germany (Zeppelin-Staaken Riesenflugzeug "Giant" bomber)
found: IPMS/USA web site, 26 Oct. 2007kit reviews, Roden 1/72 Staaken (the Zeppelin-Staaken R.VI was one of a small group of very heavy bombers developed for the Imperial German Air Service during the later stages of World War I; classified as "R" types (Riesenflugzeug), these airplanes were long range heavy bombers intended for nocturnal bombing attacks against England)
found: Kaiser's Bunker web site, 26 Oct. 2007:Riesenfluzeugabteilung 501 (Staaken R-planes; R-planes (Staaken bombers))
