Z3-graded Grassmann Variables, Parafermions and their Coherent States
  A relation between the $Z_3$-graded Grassmann variables and parafermions is established. Coherent states are constructed as a direct consequence of such a relationship. We also give the analog of the Bargmann-Fock representation in terms of these Grassmann variables. 
M. El Baz, Y. Hassouni, F. Madouri