  Triple gauge boson couplings between Z, gamma and the W boson are determined
by exploiting their impact on radiative corrections to fermion-pair production
in e+e- interactions at centre-of-mass energies near the Z-pole. Recent values
of observables in the electroweak part of the Standard model are used to
determine the four parameters epsilon_1, epsilon_2, epsilon_3 and epsilon_b. In
a second step the results on the four epsilon parameters are used to determine
the couplings Delta-g^1_Z and Delta-kappa_gamma. For a wide range of scales,
these indirect coupling measurements are more precise than recent direct
measurements at LEP 2 and at the TEVATRON. The Standard model predictions agree
well with these measurements.
