Book  (Apr 1993)  Page(s) 443.  
 
Hybrid Tea, light yellow, 1902, 'Kaiserin Auguste Viktoria' sport; Schneider. Flowers cream, shaded lemon.

Book  (1936)  Page(s) 304.  
 
Godesberg, Perle von (HT) Schneider 1902; Sport of K. Aug. Viktoria; golden-yellow, edges lighter, fades to light yellow, large, double, solitary, fragrance 7/10, floriferous, recurs in autumn, growth 7/10, bushy. Sangerhausen

Website/Catalog  (1922)  Page(s) 29.  
 
General List. (132) Perle von Godesberg (HT) (Schneider) 2. A pale yellow sport from 'K. A. Victoria', frequently white. Said to be an improved variety.

Book  (1918)  Page(s) 75.  
 
H. R. Darlington. A Study of Form in the Rose
The type of white flower beginning with the comport Kaiserin Augusta Victoria, we may carry through Perle von Godesberg, Mrs. David McKee, Mabel Drew (a good Rose), White Killarney, Mrs. Andrew Carnegie and Florence Forrester;

Book  (1914)  Page(s) 289.  
 
Perle von Godesberg, H.T., cream.

Magazine  (29 Jul 1911)  Page(s) 362.  
 
The Parentage of Roses.
The following list of the world's Roses and their parentage has been compiled by Mr. Robert Daniel, 38 Russell Road. Fishponds, Bristol, and by his kind permission we are enabled to publish it...
Perle von Godesberg... Hybrid Tea, Schneider, 1902, Sport Kaiserin Augusta Victoria

Website/Catalog  (1910)  Page(s) 119.  
 
Pink...TH Perle von Godesberg

Website/Catalog  (1909)  Page(s) 45.  
 
Hybrid Tea. Perle von Godesberg (Schneider 1903) jaune clair, centre jaune d'or, superbe

[Translation: light yellow, center golden yellow, superb]

Book  (1907)  Page(s) 72.  
 
Perla von Godesberg This rose is very much like "Kaiserin Augusta Victoria" but as far as at present known promises to be a better grower.

Booklet  (1904)  Page(s) 13.  
 
Perle von Godesberg (Schneider 1902). A slightly deeper yellow sport of Kaiserin A. Victoria....Vig.  Exh. gdn. dec.