Reversal of Central Anticholinergic Syndrome by Galanthamine. The Journal of American Medical Association, 1977. Artikkelin verkkoversio. Viitattu 3.11.2011.
Pilocarpus spp.: A survey of its chemical constituents and biological activities. Brazilian Journal of Pharmaceutical Sciences, 2004, 40. vsk, nro 2. Artikkelin verkkoversio. Viitattu 1.11.2011. (englanniksi)