Book  (2005)  Page(s) 52.  
 
location G:189, Drei Gleichen, ? , hybrid lutea, medium size, semi-double, mild fragrance, medium height

Book  (1936)  Page(s) 217.  
 
Drei Gleichen (hybrid lutea) ? ? ; lemon-yellow, medium size, semi-double, solitary or up to 4, growth 5/10, bushy.