1. An essay on the shaking palsy 1817;Parkinson J.;J. Neuropsychiat. Clin. Neurosci.,2002
2. Goodman & Gilman's The Pharmacological Basis of Therapeutics 2011 McGraw‐Hill Medical New York 609 619
3. There is an excellent overview on Parkinson's disease in Wikipedia (with 149 references).
4. Priorities in Parkinson's disease research
5. Therapeutic strategies for Parkinson disease: beyond dopaminergic drugs