%0 Journal Article %A Eggleston, H. G. %T The centroid and circumcentre of a plane convex set %J Compositio Mathematica %D 1969 %P 125-136 %V 21 %N 2 %I Wolters-Noordhoff Publishing %U http://archive.numdam.org/item/CM_1969__21_2_125_0/ %G en %F CM_1969__21_2_125_0