Dictionary of plant names : over 100,000 names of about 10,000 species and varieties
of flowering plants and fern-like plants in Latin, Russian, English and Chinese (hieroglyphic
and Latin transliteration) / A.I. Schroeter & V.A. Panasiuk / edited by V.A. Bykov,
1999
Internet, www.authorities.loc.gov., 2010-01-20