%0 Journal Article %A Raphaël Carroy %A Benjamin D. Miller %A David Schrittesser %A Zoltán Vidnyánszky %T Minimal definable graphs of definable chromatic number at least three %J Forum of Mathematics, Sigma %D 2021 %V 9 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.1017/fms.2020.58/ %R 10.1017/fms.2020.58 %G en %F 10_1017_fms_2020_58