Article (magazine)  (2023)  
 
'Kortersen', Source/Accession JCRA [JC Raulston Arboretum, Raleigh NC]  ...Estimated ploidy level(x) 4 

Website/Catalog  (2012)  
 
Website

'Kortersen' , LCl, dp, 1977, (Rosarium Uetersen, 'Seminole Wind', 'Uetersen'), [Karlsruhe × seedling], Kordes, W.; bud ovoid, pointed; flowers deep pink, silvery reverse, ruffled petals, 10-12 cm., very dbl., borne in large clusters, slight, mild fragrance; recurrent; foliage large, medium green, glossy; vigorous, climbing (10 ft.) growth

Article (magazine)  (2010)  Page(s) 1781.  
 
Rosarium Uetersen (KORtersen), Earth-Kind Brigade, Large-flowered climber, 1977, Reimer Kordes, Ploidy 4x ....

Book  (2003)  Page(s) 341.  Includes photo(s).
 
Rosarium Uetersen  ....

Book  (Apr 2001)  Page(s) 93.  
 
Utersen see 'Rosarium Uetersen' [sic]

Website/Catalog  (31 Dec 1998)  Page(s) 23.  Includes photo(s).

Book  (Nov 1998)  Page(s) 118.  Includes photo(s).

Newsletter  (Apr 1995)  Page(s) 24.  
 
"Twenty of the Best Hardy Roses for Nurserymen Selling Roses in New Hampshire" by Mike Lowe
The following are ten of the best repeat-flowering roses. Keep in mind that most miniature and Rugosa roses are very hardy.
Rosarium Uetersen. 1977. Climber with deep coral pink blossoms. Buds are ovoid; flowers very double, fragrant, three inches across. Blooms from June until frost. Foliage large, glossy, with vigorous climbing growth. I use this rose as a ground cover. It dies back above the snow line, but always comes back for me. (I've had it twelve years.)

Book  (Apr 1993)  Page(s) 516.  
 
Rosarium Ueteresen® [sic] Large-flowered Climber, deep pink, 1977, (KORtersen, 'Rosarium Uetersen'); 'Karlstruhe' x Seedling; Kordes, W. Description.

Book  (1990)  Page(s) 124.  
 
Utersen Kordes 1978, correctly called 'Rosarium Utersen'... Description. Flowers: bright pink...