Website/Catalog  (2008)  Page(s) 11.  Includes photo(s).

Book  (Aug 2002)  Page(s) 47.  
 
Helmut Schmidt
Rated 7.2

Book  (2001)  Page(s) 49.  
 
Helmut Schmidt Hybrid Tea, medium yellow, 1979. Rating: 6.9

Website/Catalog  (23 Oct 1998)  Page(s) 12.  Includes photo(s).

Book  (1996)  Page(s) 77.  
 
Simba (KORbelma, 'Goldsmith', 'Helmut Schmidt') Large-flowered (Hybrid Tea) bush. Description. Flowers: yellow. Parentage: KORgold ['New Day'] x Seedling. Kordes (Germany) 1981. Named after a golden labrador owned by the raiser's agent, Mark Mattock; simba is Swahili for lion.

Book  (1996)  Page(s) 94.  Includes photo(s).
 
Simba ('Goldsmith', 'Helmut Schmidt', KORbelma) Large-flowered hybrid tea bush... an even shade of yellow... [in the US it is known as] 'Goldsmith' or 'Helmut Schmidt' and in Britain they call it 'Simba'... Kordes 1981

Book  (1995)  Page(s) 32.  Includes photo(s).
 
Simba
('Helmut', 'Goldsmith', Korbelma)
Hybrid Tea
... clear-yellow blooms which appear in flushes, rather than continually during the summer...

Book  (Sep 1993)  Page(s) 213.  Includes photo(s).
 
Helmut Schmidt (KORbelma, 'Simba', 'Goldsmith') Large-flowered. Parentage: 'New Day' x unnamed seedling. Reimer Kordes 1979. Description... named for the German statesman... one of the very best yellow roses...

Book  (Apr 1993)  Page(s) 241.  
 
Hybrid Tea, medium yellow, 1979, (KORbelma; 'Goldsmith'; 'Simba'); 'New Day' x Seedling; Kordes, W. Bud large, long, pointed; flowers medium yellow, double (35 petals), high-centered blooms borne 1-3 per cluster; fragrant; foliage matt; vigorous, upright, bushy growth.

Book  (Feb 1993)  Page(s) 211.  Includes photo(s).
 
Simba Large-flowered hybrid tea. Parentage: 'Korgold [aka 'New Day'] x a seedling. (aka 'Goldsmith', 'Helmut Schmidt'. KORbelma) Germany 1981. Description and cultivation... bright yellow flowers... suitable for cutting...