A new class of time-dependent Bell inequalities in Wigner form
  We derive a new class of time-dependent Bell inequalities in Wigner form under the assumption of locality in the framework of Kolmogorov's probability theory. We consider violation of the obtained inequalities for three cases: spin correlations in an external magnetic field; oscillations of neutral pseudoscalar mesons; and decays of a pseudoscalar into a fermion-antifermion pair. 
N. Nikitin, V. Sotnikov, K. Toms
quant-ph