Viola × williamsii (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "Viola × williamsii" in English language version.

refsWebsite

Global rank English rank

2biodiversitylibrary.org

387^th place

373^rd place

1web.archive.org

1^st place

1^st place

biodiversitylibrary.org

Wittrock, Veit Brecher (1897). "Viola-studier I. Morfologisk-biologiska och systematiska studier öfver Viola tricolor (L.) och hennes närmare anförvandter". Acta Horti Bergiani. 2 (1): 117.
Wittrock, Veit Brecher (1895). "Viola-studier II. Bidrag till de odlade penséernas historia med särskild hänsyn till deras härkomst". Acta Horti Bergiani. 2 (7): 5–6.

web.archive.org

Karlsson, Thomas; Marcussen, Thomas; Wind, Peter; Jonsell, Bengt (2010). "Violaceae". In Jonsell, Bengt; Karlsson, Thomas (eds.). Thymelaeaceae - Apiaceae. Flora Nordica. Vol. 6. Stockholm: Royal Swedish Academy Sciences. ISBN 9789186510619. Archived from the original on July 31, 2016.