The Wigner-Weyl formalism and the relativistic semi-classical approximation

Weyl–Wigner–Moyal formalism for Fermi classical systems

The Wigner transform and semi-classical approximations

Semi-Classical Approximation for Non-Relativistic and Relativistic Quantum Mechanical Equations

A Relativistic Wigner Function Affiliated with the Weyl-Poincaré Group

A Relativistic Wigner Function Affiliated with the Weyl-Poincaré Group

The Weyl–Wigner–Moyal Formalism on a Discrete Phase Space