TY  - JOUR
AU  - Charlier, Benjamin
TI  - Necessary and sufficient condition for the existence of a Fréchet mean on the circle
JO  - ESAIM: Probability and Statistics
PY  - 2013
SP  - 635
EP  - 649
VL  - 17
PB  - EDP-Sciences
UR  - http://www.numdam.org/articles/10.1051/ps/2012015/
DO  - 10.1051/ps/2012015
LA  - en
ID  - PS_2013__17__635_0
ER  -