%0 Journal Article %A Haruki, Hiroshi %T On an application of the theorem of Apollonius %J Portugaliae mathematica %D 1974 %P 167-170 %V 33 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/PORMA_1974__33_3_115234/ %G en %F PORMA_1974__33_3_115234