Testing Neutrino Properties at Long Baseline Experiments and Neutrino   Factories
  It is shown that explanations of atmospheric neutrino anomaly other than $\nu_\mu - \nu_\tau oscillations (e.g. decay, decoherence and $\nu_\mu - \nu_\tau - \nu_{KK}$ mixing) can be tested at future facilities. Stringent tests of CPT invariance in neutrino oscillations can also be performed. 
S. Pakvasa