Article (HMF Ezine)  (Nov 2001)  Page(s) 1.  
 
Ritausma possibly the original name of 'Polareis'

Website/Catalog  (4 Jan 1999)  Page(s) 129.  Includes photo(s).
 
Polareis Description... A "new" variety that began its westward journey from the former Leningrad 30 years ago... semidouble blooms are milk white with shell pink centers and have a slightly spicy, Old Rose scent...

Book  (Dec 1998)  Page(s) 478.  
 
Polareis ('Polaris') Large-flowered Climber. Horvath (USA) 1939. Parentage: (Rosa wichuraiana x R. setigera) x R. foetida bicolor. Description... clusters of snow white, double blooms... no repeat...