Ectypa plantarum ratisbonensium :
Regensburg :Verfertiget und verlegt von Johann Mayr ... und gedruckt mit Zeitlerischen Schriften,1787-1793.
biodiversitylibrary.org/page/59791019
American journal of botany
Lancaster, Pa. :Published in cooperation with the Botanical Society of America by the Brooklyn Botanic Gardens,1914-
biodiversitylibrary.org/page/47216134
The journal of the Horticultural Society of London..
London, [England] :Published for the Society, by Longman and Co.,1846-1855..
biodiversitylibrary.org/page/43585389