%0 Journal Article %A Whitley, Robert %T The Size of the Unit Sphere %J Canadian journal of mathematics %D 1968 %P 450-455 %V 20 %N 1 %U http://geodesic.mathdoc.fr/articles/10.4153/CJM-1968-041-1/ %R 10.4153/CJM-1968-041-1 %F 10_4153_CJM_1968_041_1