Shapovalov A. V. Aleksandr Vasilyevich & Shirokov I. V. (1992). Symmetry algebras of linear differential equations. 1992.
Chicago Style (17th ed.) CitationShapovalov A. V. Aleksandr Vasilyevich and Shirokov I. V. Symmetry Algebras of Linear Differential Equations. 1992, 1992.
MLA (9th ed.) CitationShapovalov A. V. Aleksandr Vasilyevich and Shirokov I. V. Symmetry Algebras of Linear Differential Equations. 1992, 1992.
Warning: These citations may not always be 100% accurate.