TY - JOUR TI - Colour-magnitude diagrams of the post-core collapse globular cluster NGC 6256 and NGC 6717 (Palomar 9)* PY - 1999 AU - Ortoloni, S AU - Barbuy, Beatriz Leonor Silveira AU - Bica, E T2 - Astronomy and Astrophysics Supplement Series DO - 10.1051/aas:1999210 UR - https://doi.org/10.1051/aas:1999210 PP - Le Ulis VL - 136 IS - 2 SP - 237-243 ER -