Article (website)  (2014)  
 
795 ornamental flower (rose), Rosa sp., Pink-Ilseta, FRG(Germany) 1985, Fed.Res.Center for Hort.Pl.Brd. X-rays 25 Gy in vitro derived micro-shoots 1983 (Pearl-Ilseta) flower colour intense pink flower type:Ilseta MBNL 28-23 35-41

Book  (1988)  Page(s) 201.  
 
Table 26: Commercial mutants of roses
Pink-Ilseta, Fed. Rep. Germany, Rosen-Tantau, Ahrensburg; Micro-shoots, 25 Gy X-rays, 1983 (Perl-Ilseta); Intense pink flower colour; type like 'Ilseta'