Article (website)  (2005)  Page(s) 8.  
 
"Professor Eduard Regel,... introduced three Rugosas: 'Regeliana' (1871), 'Regeliana Alba' (ca. 1871), and in 1879 'Regeliana Flore Plena' aka 'Kaiserin des Nordens'.

Website/Catalog  (1961)  Page(s) 21.  
 
Rosiers Rugosas et Hybrides de Rugosas ....   REGELIANA RUBRA (Regel). Grande fleur simple rouge violacé remarquable par ses gros fruits.

Website/Catalog  (1946)  Page(s) 25.  
 
REGELIANA (Regel). Fleur rose violet, grande, simple, remarquable par ses gros fruits.

Website/Catalog  (1938)  Page(s) 47.  
 
Rugosa Roses and their Hybrids (R. Rugosa).
These do not require pruning after the first season, except cutting away dead wood.
Rugosa (Regeliana)... Crimson. Single. 

Book  (1936)  Page(s) 634.  
 
R. rugosa Regeliana (cinnamomea) Regel ?; violet-purple, single to semi-double, fragrance 5/10, floriferous, repeats, many pointed thorns, large fruit, growth 8/10, large bush, hardy. Introduced by Regel from Siberia = R. rugosa sibirica. Sangerhausen.

Website/Catalog  (1934)  Page(s) 94.  Includes photo(s).
 
Rosa rugosa Regeliana

Website/Catalog  (1933)  Page(s) 94.  
 
Rosa rugosa...Rosa rugosa Regelina. Single, bright violet (10 na) blooming "rose apple". Produces large, coral-red hips....Low garden plants 1 piece RM [Reichsmark] -.70  10 pieces RM 6.50

Website/Catalog  (1927)  Page(s) 92.  
 
Park Roses...Rosa rugosa Regeliana, dark carmine-red, hirsute fruit. 1 piece M 1.- 10 pieces M 9.-, 100 pieces M 80.-

Website/Catalog  (1925)  Page(s) 86.  
 
Rosa rugosa...Rosa rugosa Regelina. Red-blooming "rose apple". Produces large, coral-red hips....Low-grafted garden plants 1 piece G.-M. [Gold-Mark] 1.25

[corrected in 1929 to Rosa rugosa Regeliana, added: single]

Website/Catalog  (1924)  Page(s) 56.  
 
Park roses...Rosa rugosa regeliana, dark carmine-red, hirsute fruit...1 piece 1.-, 100 pieces 80.-