Book  (Apr 1999)  Page(s) 556.  
 
Geheimrat Dr. Mitteweg Lambertiana. Peter Lambert 1909

Book  (Apr 1993)  Page(s) 202.  
 
Geheimrat Dr. Mittweg Shrub, rose-red, center yellowish white, 1909, ('Mme. Norbert Levavasseur' x 'Trier') x R. foetida bicolor; Lambert, P. Description.

Book  (1939)  Page(s) 9.  
 
Geheimrat Dr. Mittweg, pink, Kommerzienrat W. Rautenstrauch, similar to the prior, but somewhat larger blooms, and Heinrich Conrad Söth. the most magnificent of the year.

Book  (1938)  Page(s) 25.  
 
Alister Clark.  A walk About "Glenara". 
Crepuscule and Dr. Mittweg are growing in its shade, but require removal. 

Website/Catalog  (1938)  Page(s) 16.  
 
Repeating Climbers. Lambertianas. Geheimrat Dr. Mittweg (multiflora) (P. Lambert 09). Large lax trusses, double, pink with yellowish centre; blooms continuousl until frost, up to 1.50 m.

Book  (1936)  Page(s) 483.  
 
Mittweg, Geheimrat Dr. (multiflora, Lambertiana) Lambert 1909; M. N. Levavasseur X Trier; pink, lilac-pink reflexes, center yellowish white, large, double, broad, large lax clusters, fragrance 4/10, floriferous, continuous bloom, few prickles, growth 8/10, climbing, 2 m., dense. Sangerhausen

Book  (1930)  Page(s) 395.  
 
Geheimrat Dr. Mittweg. (P. Lambert 1909.) Mad. Norbert Levavasseur x Trier.
Medium size, double, soft pink with lighter center, in large loose trusses. The shrub attains 1 ½ to 2 m, has beautiful, large, dark green foliage, blooms abundantly in July and repeats until frost. Can be well used as a park or hedge rose.

Website/Catalog  (1929)  Page(s) 61.  
 
Lambertiana Roses
A class of Roses new to this country, originated by Peter Lambert of Germany. They tend to be shrubby climbers which bloom more or less frequently during the season. Valuable as strong shrubs and most interesting as a step forward in Rose progress. Following varieties are $1.50 each
Geheimrat Dr. Mittweg. (P. Lambert, 1909.) Rosy pink flowers with pale yellow centers, borne in large trusses. Growth strong; good foliage.
Good for hedges or specimen plants, and considered one of the best. We have found it most attractive and almost always in bloom. (Mme. Norbert Levavasseur X Trier.)

Website/Catalog  (1926)  Page(s) 35-36.  
 
Repeat-flowering semi-climbers. 1.5 to 2.5 m tall.
Lambertiana Geheimrat Dr. Mittweg. (P. Lambert 1909). Vigorous, bushy, upright, strong but few prickles. Extra large dark green foliage. Blooms in large, loose trusses, double, polyantha-like, expanded, rose-pink with yellowish white centre. Cut rose. Useable as shrub in front, hedge, solitary rose. Blooms continuously until frost.

Website/Catalog  (1923)  Page(s) 16.  
 
Rosa Lambertiana... Geheimrat Dr. Mittweg (Lambert, 1909). Pink with yellowish white center. (Norbert Levavasseur X Trier).