1. J. F. Cornwell, Group Theory in Physics: An Introduction (Academic, San Diego, CA, 1997).
2. N. G. Marchuk, Field Theory Equations and Clifford Algebra (Regular and Chaotic Dynamics, Izhevsk, 2009) [in Russian].
3. N. Marchuk, “Mass generation mechanism for spin-(1/2) fermions in Dirac-Yang-Mills model equations with a symplectic gauge symmetry,” Nuovo Cimento B 125(10), 1249–1256 (2010).
4. N. Marchuk, Field Theory Equations (CreateSpace Independent Publ. Platform, Scott Valley, CA, 2012).
5. N. G. Marchuk and D. S. Shirokov, Introduction to the Theory of Clifford Algebras (Phasis, Moscow, 2012) [in Russian].