Book  (Apr 2001)  Page(s) 95.  
 
White Ellen Poulsen see 'Frau Hedwig Koschel'

Book  (Apr 1993)  Page(s) 191.  
 
Frau Hedwig Koschel. Polyantha, white, slightly shaded yellow, edges tinted rose-pink, 1921, 'Ellen Poulsen' sport; Münch & Haufe.

Book  (1936)  Page(s) 390.  
 
Koschel, Frau Hedwig (polyantha) Münch & Haufe 1921; sport of Ellen Poulsen; white, shaded light yellow, edges stained light pink, large, very double, large clusters, fragrance 6/10, growth 6/10, Sangerhausen

Website/Catalog  (1924)  Page(s) 24.  
 
The following sorts contain a few of medium quality and many quite unsuitable. They are therefore "discarded." Hedwig Koschel