@Article{ MARTÍN:3067-3075,

author = { MIGUEL MARTÍN SUÁREZ } ,

title = { POSITIVE AND NEGATIVE RESULTS ON THE NUMERICAL INDEX OF BANACH SPACES AND DUALITY },

journal = { Proceedings of the American Mathematical Society },

year = { 2009 },

volume = { 137 },

pages = { 3067-3075 },

doi = { http://dx.doi.org/10.1090/s0002-9939-09-09837-2 },

}