TY - JOUR AU - Angelo Alvino AU - Vincenzo Ferone AU - Carlo Nitsch TI - A sharp isoperimetric inequality in the plane JO - Journal of the European Mathematical Society PY - 2011 SP - 185 EP - 206 VL - 13 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.4171/jems/248/ DO - 10.4171/jems/248 ID - JEMS_2011_13_1_a6 ER -