The critical behaviour of the generalized (anisotropic) m-component We
inrib-Halperin model is investigated. The critical exponent eta and th
e dynamic exponent z are calculated in d = 4 - epsilon space dimension
in a two- and one-loop approximation, respectively. Using the fermion
ic formulation we have derived an exact result for the correlation len
gth exponent nu of the two-dimensional Ising model with long-range cor
related quenched defects.