The Weinberg Propagators
  An analog of the $j=1/2$ Feynman-Dyson propagator is presented in the framework of the $j=1$ Weinberg's theory. The basis for this construction is the concept of the Weinberg field as a system of four field functions differing by parity and by dual transformations. 
Valeri Dvoeglazov (Universidad Autonoma de Zacatecas)