Verbatim text: Doroszewska, A. 1974. The genus Trollius L., a taxonomical study. Monogr. Bot. 41: 1-167, plates 1-16.
Author: Doroszewska, A.
Year: 1974
Title: The genus Trollius L., a taxonomical study
Journal: Monogr. Bot
Volume: 41
Pages: 1–167