Taxonomic notes on Colias tyche Boeber, 1812 and Colias nastes Boisduval, 1832 (Lepidoptera, Pieridae) from the Russian Far East with the descriptions of new subspecies. Churkin, S.; Tuzov, Vasily K.[Eds]. Helios: collection of lepidopterological articles. Volume 2., Sovetsky Sport, Moscow, 2001: 1-202. Chapter pagination: 103-116. 109 [Zoological Record Volume 140]