Title: Measurement of the e+e- -> Zgammagamma Cross Section 
and Study of Anomalous  Quartic Gauge Couplings.  

The  cross section of the process
e+e- -> Zgammagamma -> q qbar gammagamma  is measured using a total
integrated luminosity  of 0.5 fb-1 collected with the L3 detector 
at centre-of-mass energies between  130.1 GeV and 201.7 GeV. 
The results are consistent  with the Standard Model expectations and limit
the values of the possible anomalous  Quartic Gauge Boson Couplings 
a_0/Lambda^2 and a_c/Lambda^2 as
-0.007 GeV^-2  < a_0/Lambda^2 < 0.005 GeV^-2 and
-0.006 GeV^-2  < a_c/Lambda^2 < 0.011 GeV^-2 at
95% confidence level. 




Parallel session: 5,11
Plenary Talks   : 6a,7a