Book  (2002)  Page(s) 159.  
 
Norfolk  (Poulfolk)  (Gc) my Poulsen 1990  MR11. 
(available from) V1, AA4, BB7, BB16, CC6, CC9, GG1, LL6, SS9. 

Book  (19 Apr 2000)  Page(s) 463.  
 
POUlfolk; S, my, 1990; (Norfolk); Poulsen

Website/Catalog  (23 Oct 1998)  Page(s) 5.  Includes photo(s).
 
Norfolk (POUlfolk) County Series. Bright yellow, very fragrant double blooms... Poulsen 1990.

Book  (1997)  Page(s) 326.  Includes photo(s).
 
Norfolk (POUlfolk) Poulsen 1989. Description... clusters of small, double, bright yellow flowers...

Book  (1996)  Page(s) 60.  
 
Norfolk (POUlfolk) Dwarf Cluster-flowered (Patio) ground cover; clusters of many bright yellow double rounded flowers... Poulsen (Denmark) 1990.