Faint photometric BVRc CCD sequences - The North galactic pole () and the anticenter (, )A. Spagna, M. G. Lattanzi, B.J. M Lean, G. Massone and B. M. LaskerAstron. Astrophys. Suppl. Ser., 130 2 (1998) 359-367DOI: https://doi.org/10.1051/aas:1998409