1. Mathematical Theory of Feynman Path Integrals;Albeverio,1976
2. Feynman Path Integrals, Proceedings,1979
3. Space-time approach to non-relativistic quantum mechanics;Feynman;Review of Modern Physics,1948
4. Schwinger functions and their generating functionals I;Fröhlich;Helv. Phys. Acta,1974