The extreme chemistry of multiple stellar populations in the metal-poor globular cluster NGC 4833 E. Carretta, A. Bragaglia, R. G. Gratton, V. D’Orazi, S. Lucatello, Y. Momany, A. Sollima, M. Bellazzini, G. Catanzaro and F. Leone A&A, 564 (2014) A60 Published online: 04 April 2014 DOI: 10.1051/0004-6361/201323321