Co-orbital exoplanets from close-period candidates: the TOI-178 case A. Leleu, J. Lillo-Box, M. Sestovic, P. Robutel, A. C. M. Correia, N. Hara, D. Angerhausen, S. L. Grimm and J. Schneider A&A, 624 (2019) A46 Published online: 04 April 2019 DOI: 10.1051/0004-6361/201834901