Newsletter  (Jul 2012)  Page(s) 44-45.  
 
p. 44: Among the varieties of his [Michurin's] selection (Noble, Buketnaya, Bicolorous, Zarya Vostoka, Sister of Dawn, Brother of Dawn, Double White, Kerb Pink, Kerb White, Lawny, Mother of blue, Mother of yellow, Mother of climbing, Svetlana, Tatyana Michurina, N.I. Kichunov, Neptune, Prince of Varangians, Prince Rurik, Cream, Fairy, Tsarina of Light, Ceres, etc.), many carried the genes of this species [Rosa rugosa].

p. 45: Cream Origins: a seedling of R. lutescens. “Of middle height. Flowers are cream-coloured, quite double, perfectly-formed, medium sized. Abundantly blooming. Buds are yellow, good rose for the northern areas due to its hardiness.