Rabey, J. M.; Hefti, F. (1990). „Neuromelanin synthesis in rat and human substantia nigra”. Journal of Neural Transmission – Parkinson's Disease and Dementia Section. 2 (1): 1—14. PMID2357268. doi:10.1007/BF02251241.
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ncbi.nlm.nih.gov
Rabey, J. M.; Hefti, F. (1990). „Neuromelanin synthesis in rat and human substantia nigra”. Journal of Neural Transmission – Parkinson's Disease and Dementia Section. 2 (1): 1—14. PMID2357268. doi:10.1007/BF02251241.