%0 Journal Article %A Horňák, Mirko %T The achromatic number of $K_6\square K_q$ equals $2q+3$ if $q\ge41$ is odd %J Discussiones Mathematicae. Graph Theory %D 2023 %P 1103-1121 %V 43 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/DMGT_2023_43_4_a12/ %G en %F DMGT_2023_43_4_a12