1. Grant Mitchell, Iraj Rezvani: Defects in metabolism of amino acids: Tyrosine. Nelson Textbook of Pediatrics. Edited by: Kleigman, Behrman, Jenson, Stanton. 2008, Elsevier Publication: Indian reprint, 1: 534-18
2. Srsen S, Müller CR, Fregin A, Srsnova K: Alkaptonuria in Slovakia: 32 years research on phenotype and genotype. Mol Genet Metab. 2002, 75 (4): 353-9. 10.1016/S1096-7192(02)00002-1.
3. Müller CR, Fregin A, Srsen S, Srsnova K, Halliger-Keller B, Felbour U, Seemanova E, Kress W: Allelic heterogeneity of Alkaptonuria in Central Europe. Eur J Hum Genet. 1999, 7 (6): 645-51. 10.1038/sj.ejhg.5200343.
4. Cobos Soler FJ, Molero Cabrilla R: ochronosis: a case report with multisystemic affection, including pericardium. An Med Interna. 2002, 19 (11): 583-585.
5. Rayana N, Chahed N, Khochtali S, Ghorbel M, Hamdi R, Rouis M, Bouajina I, Ben Hadj Hamida F: Ocular ochronosis. A case report: J Fr Ophthalmol. 2008, 31 (6): 624.