Astrophysical parameters of Galactic open clusters N. V. Kharchenko, A. E. Piskunov, S. Röser, E. Schilbach and R.-D. Scholz A&A, 438 3 (2005) 1163-1173 Published online: 18 July 2005 DOI: 10.1051/0004-6361:20042523