Possible Nonstandard Effects in Z+Gamma Events at LEP2
  We point out that the so--called 'radiative return' events at LEP2 are suited to the study of nonstandard physics, particularly if the vector bosons are emitted into the central detector region. An effective vertex is constructed which contains the most general gauge invariant eeZGamma interaction and its phenomenological consequences are examined. Low Energy Constraints on the effective vertex are discussed as well. 
K.J.Abraham and Bodo Lampe