%0 Journal Article %A J. Gillard %T Characterizations of complex space forms by means of geodesic spheres and tubes %J Colloquium Mathematicum %D 1996 %P 253-262 %V 71 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/cm-71-2-253-262/ %R 10.4064/cm-71-2-253-262 %G en %F 10_4064_cm_71_2_253_262