Book  (Sep 1993)  Page(s) 186.  Includes photo(s).
 
Gabriella (BERgme) Cluster-flowered. Discovered by Lars Berggren, a Swedish cut-rose grower, and introduced by Kordes in 1977. Description... one of the world's leading florist's greenhouse roses... dark orange-red. Parentage: Sport from 'Mercedes'

Book  (Apr 1993)  Page(s) 198.  
 
Gabriella® Floribunda, medium red, 1977, (BERgme; 'Gabrielle'); 'Mercedes' sport; Berggren. Description.