[en] Experimental evidence is presented for a resonant behaviour of the hadron production from e+e- annihilations at the e+e- storage ring ADONE. A Breit-Wigner fit to the enhancement present between 1800 and 1850 MeV gives the following parameters M=1812sub(-13)+7 MeV, GAMMA=34sub(-15)+21 MeV. (Auth.)