%0 Journal Article %T VRI photometry of M67 for CCD standardization at 2.3m VBT %A A. K. Kembhavi %A K. P. Singh %A P. N. Bhat %A T. P. Prabhu %J - %D 1992 %U https://www.ias.ac.in/describe/article/joaa/013/04/0293-0305