Book  (2005)  Page(s) 174.  
 
location I:I/2, Rudolf Kluis Superior, Kluis 1928, polyantha, carmine-red, medium size, double, moderate fragrance, short

Book  (1936)  Page(s) 388.  
 
Kluis Superior, Rudolph (polyantha) Kluis 1928; glowing scarlet, stronger habit [than Rudolph Kluis]. Sangerhausen