Selectron Searches in $e^-e^-$, $e^-\gamma$ and $\gamma\gamma$   Scattering
  We review the selectron production mechanisms in the linear collider modes which do not require positrons. The standard model backgrounds can be rendered harmless or even be nearly eliminated with polarized beams. We insist on the complementarity of these different experiments. 
Frank Cuypers (PSI)