1. Ainsworth & Bisby's Dictionary of the fungi;Ainsworth,1963
2. Production of a new lysergic acid derivative in submerged culture by a strain of Claviceps paspali Stevens & Hall;Arcamone;Proc. Roy. Soc. B,1961
3. The effect of mechanical agitation on the morphology of Penicillium chrysogenum (Thorn) in stirred fermenters;Dion;Rend. Ist. Super. Sanita,1954
4. Thin-layer chromatography of ergot alkaloids;McLaughlin;J. Pharm. Sci.,1964
5. Stoll, A., Brack, A., Hofmann, A. & Kobel, H. (1957). U.S. Patent 2,809,920.