Towards a more complete sample of binary central stars of planetary nebulae with Gaia N. Chornay, N. A. Walton, D. Jones, H. M. J. Boffin, M. Rejkuba and R. Wesson A&A, 648 (2021) A95 Published online: 20 April 2021 DOI: 10.1051/0004-6361/202140288