  We give a theoretical description of the L3 Collaboration data on the
cross-section of the exclusive two $\rho$-mesons production in $\gamma\gamma
^*$ collision with large photon virtuality. These data prove the scaling
behaviour of the leading twist generalized distribution amplitude of vector
mesons. They thus prove the relevance of a partonic description of the
exclusive process $\gamma\gamma ^*\to\rho ^0\rho ^0$ at $Q^2\geq 1.2 {\rm
GeV^2}$ and $W\leq 3.0 {\rm GeV}.$
