A high-resolution study of isotopic composition and chemical abundances of blue horizontal branch stars in the globular clusters NGC 6397 and NGC 6752S. Hubrig, F. Castelli, G. De Silva, J. F. González, Y. Momany, M. Netopil and S. MoehlerA&A, 499 3 (2009) 865-878DOI: https://doi.org/10.1051/0004-6361/200911721