The survey of planetary nebulae in Andromeda (M 31) - I. Imaging the disc and halo with MegaCam at the CFHTSouradeep Bhattacharya, Magda Arnaboldi, Johanna Hartke, Ortwin Gerhard, Valentin Comte, Alan McConnachie and Nelson CaldwellA&A, 624 (2019) A132DOI: https://doi.org/10.1051/0004-6361/201834579
