Article (misc)  (2005)  Page(s) 110, Table 5.1.  
 
Veilchenblau : diploid

Book  (2005)  Page(s) 187.  
 
'Veilchenblau', Syn. 'Bleu Violet', 'Violet Blue', 'Blue Rambler', 'Blue Rosalie'. Hybrid multiflora. (Descends from 'Crimson Rambler' x 'Souvenir de Brod'). Breeder: Schmidt, 1909. Height: 4 to 5m. Non-recurrent. Semi-double, mild fragrance, tolerates half-shade, hardy, tolerates poor soil.

..Its flowers, mildly fragrant, double, with somewhat irregular petals and a white brightened center, are of a stunning blue-violet which lightens when fading. They are joined in numerous clusters which remain in bloom a long time towards the end of spring. ...The stems are vigorous and so-to-say without thorns. It is clad in a superb light green, glossy and healthy foliage.

Book  (2000)  Page(s) 610.  Includes photo(s).
 
‘Veilchenblau’/’Blue Rambler’/’Blue Rosalie’/’Violet Blue’: Moderne – grimpant liane, mauve… violet vif griffé de blanc au milieu de chaque pétale, pâlissant au gris bleuté… Schmidt, Allemagne, 1909. RHS Award of Garden Merit 1993.

Article (magazine)  (Jun 1999)  Page(s) 71.  Includes photo(s).

Book  (Nov 1998)  Page(s) 104.  Includes photo(s).

Book  (Mar 1998)  Page(s) 9.  
 
Veilchenblau Cruse says its fragrance is like lily-of-the-valley

Book  (Mar 1998)  Page(s) 85.  Includes photo(s).
 
Rosa multiflora 'Veilchenblau' Description... The colour occurs in no other variety, and looks particularly attractive in partial shade; it is a soft lavender-purple, with white bases to the petals and yellow stamens. The small buds are red... lily-of-the-valley scent...

Book  (Feb 1995)  Page(s) 1.  Includes photo(s).
 
Actually in the Table of Contents

Book  (Mar 1994)  Page(s) 85, 98.  Includes photo(s).
 
Veilchenblau Climber. J.C. Schmidt 1909. Description and vital statistics... crimson violet with whitish eye, later blue violet; small-flowered, 1 in (3 cm), frost-hardy...

Photo: page 85

Book  (Apr 1993)  Page(s) 621.  
 
Veilchenblau Hybrid Multiflora, violet, streaked with white, center white, 1909, ('Blue Rambler'; 'Blue Rosalie'; 'Violet Blue'); 'Crimson Rambler' x 'Erinnerung an Brod'; Schmidt, J.C. Description.