Study of anomalous ZZγ and Zγγ couplings at LEP

We search for anomalous $\ZZG$ and $\ZGG$ couplings with the L3 detector at LEP. The analysis is based on the study of the process $\EEZG$ at center-of-mass energies in the range $161 \GeV \rts 183 \GeV$. No evidence for anomalous effects is found. Limits at the 95\% confidence level are set on the values of the eight possible anomalous couplings. Depending on the type of coupling new physics scales below 213 GeV to 1083 GeV are excluded.