Book  (Apr 1993)  Page(s) 157.  
 
Ellen Zinnow Hybrid Tea, Flowers yellow, shaded coppery orange and pink [my], 1930, 'Souv. de H.A. Verschuren' x 'Sunstar'; Krause.

Book  (1936)  Page(s) 768.  
 
Zinnow, Ellen (HT) Krause 1930; Sv. de H. A. Verschuren X Sunstar; yellow, shaded coppery orange and pink, medium-size, well double, lasting, solitary, fragrance %/10, continuous bloom, growth 6/10, bushy. Sangerhausen