Magazine  (Nov 2006)  Page(s) 49.  
 
Registration
'Korruge', Hrg, yb, 2006, (Rugelda™) ... description

Book  (11 Jun 1993)  Page(s) 44.  
 
Parentage unknown. Kordes (Germany) 1989. Description... fragrant lemon-yellow semi-double blossoms brushed with crimson... reasonably hardy; winter dieback may occur in colder regions.

Website/Catalog  Page(s) 100.  Includes photo(s).