1. Wave mechanization of dynamical systems;Arens;J. Math. Anal. Appl.,1965
2. Differential geometric elements of analytic dynamics;Arens;J. Math. Anal. Appl.,1964
3. Les systèmes différentielles extérieurs;Cartan,1954
4. Functions of Several Variables;Fleming,1965
5. Introduction to Relativistic Quantum Field Theory;Schweber,1961