Viola lutea (English Wikipedia)

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

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archive.org

Clive A. Stace (2011). "Viola L. – violets". New Flora of the British Isles (3rd ed.). Cambridge University Press. pp. 332–335. ISBN 978-0-521-70772-5.
William Hudson (1762). "Viola". Flora Anglica. London: published by the author. pp. 330–332.

Hildebrandt, Ulrich; Hoef-Emden, K.; Backhausen, S.; Bothe, Hermann; Bożek, M.; Siuta, A.; Kuta, Elzbieta (March 2006). "The rare, endemic zinc violets of Central Europe originate from Viola lutea Huds". Plant Systematics and Evolution. 257 (3): 205–222. doi:10.1007/s00606-005-0387-4. Retrieved 26 October 2020.

O. E. Balme (1954). "Viola Lutea Huds". Journal of Ecology. 42 (1): 234–240. JSTOR 2256996.

Hildebrandt, Ulrich; Hoef-Emden, K.; Backhausen, S.; Bothe, Hermann; Bożek, M.; Siuta, A.; Kuta, Elzbieta (March 2006). "The rare, endemic zinc violets of Central Europe originate from Viola lutea Huds". Plant Systematics and Evolution. 257 (3): 205–222. doi:10.1007/s00606-005-0387-4. Retrieved 26 October 2020.