Book  (2018)  Page(s) 72.  
 
D’autres hybrides internationaux furent testés [for cut roses] aux quatre coins du monde comme par exemple ‘Briarcliff’ obtenu en 1926, ‘Golden Rapture’ en 1934, ou encore ‘Better Times’ toujours en 1934.

Book  (Apr 1993)  Page(s) 217.  
 
Golden Rapture Hybrid Tea, deep yellow, 1933, ('Geheimrat Duisberg'); 'Rapture' x 'Julien Potin'; Kordes. Description.

Book  (1978)  Page(s) 89.  
 
Geheimrat Duisberg was one of the better yellow roses upon its introduction in 1933. It had shiny foliage, easy growth and handsome flowers. They were yellow, apart from the early blooms, which in common with many yellow varieties of the period, came white. The parents were 'Rapture' x 'Julien Potin'.  'Rapture' was one of the deepest pink sports on the 'Ophelia' line, from 'Mme. Butterfly' in fact.  It provided a means for the American introducers to escape the awkward German name, and substitute for 'Geheimrat Duisberg' the more familiar 'Golden Rapture'. 

Book  (1965)  Page(s) 70.  Includes photo(s).
 
Geheimrat Duisberg 'Golden Rapture. Hybrid tea. (W. Kordes, 1933). The unshaded bright yellow blooms are medium-sized, full and well formed. The colour is, however, somewhat variable, and is often rather pale. The blooms are long-lasting and excellent for cutting. This rose does well under glass and there is some fragrance.

[The painted illustration shows a very thorny stem]

Book  (1958)  Page(s) 128, 139.  
 
p. 128: Geheimrat Duisberg. Name used in Europe for Golden Rapture.

p. 139: Golden Rapture (Geheimrat Duisberg in Europe). HT. (Kordes, '33; int. H&S an dreer, '34.) Rapture X Julien Potin. Bud pointed; fl. very large, dbl. (40 petals), open, fragrant, clear golden yellow. Fol. glossy. Vig.

Book  (1957)  Page(s) 74.  
 
Geheimrat Duisberg, 1933, pure yellow, extra yellow rose for forcing, double, large, fragrant, 50cm, glasshouse

Book  (1953)  Page(s) 77.  
 
Dr. A. S. Thomas.  Yellow Roses.
Among the vivid yellows of a slightly lighter colour than these two [Wheatcroft's Gold and Ellinor Le Grice] we find 
Geheimrat Duisberg — often quite pale in the spring but a gem in the autumn;

Magazine  (Feb 1951)  Page(s) 1. trimester, p. 23.  
 
Registration internationale de roses nouvelles...
Nom original  Geheimrat Duisberg
Nom modifié  Golden Rapture

Magazine  (Jun 1950)  Page(s) 2. trimester, p. 42.  
 
Golden Rapture sent la capucine.
 

Book  (1947)  Page(s) 151.  
 
Geheimrat Duisberg (Pernetiana) produces excellently shaped, very fragrant flowers of clear golden yellow upon short stems on a dwarf plant bearing ample green glossy foliage and adds to its other merits a facility for producing flowers without seeming end. Kordes 1933....Moderate growth. Very fragrant...June-September. Hardy.