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Walter Vandereycken, Ron Van Deth, Rolf Meermann, Hungerkünstler, Fastenwunder, Magersucht. Eine Kulturgeschichte der Ess-Störungen. Zülpich, Biermann, 1990. 281 S. 111. DM 58,-ISBN 3-924469-34-2.
Pharmacographia. A history of the principal drugs of vegetable origin met with in Great Britain and British India. By FA Flückiger, Professor in the University of Strassburg and D. Hanbury. London, Macmillan & Co. 1874.(Pharmacographie, Naturgeschichte der wichtigsten in England und Englisch‐Ostindien gebräuchlichen vegetabilischen Drogen)