The needle in the haystack: where to look for more isolated cooling neutron stars (Corrigendum)B. Posselt, S. B. Popov, F. Haberl, J. Trümper, R. Turolla, R. Neuhäuser and P. A. BoldinA&A, 512 (2010) C2DOI: https://doi.org/10.1051/0004-6361:20078430e
