APA (7th ed.) Citation

Bagrov V. G., Samsonov B. F., Shapovalov A. V. Aleksandr Vasilyevich, & Shirokov I. V. (1991). Complete sets of symmetry operators containing a second-order operator and the problem of separation of variables in the wave equation. 1991.

Chicago Style (17th ed.) Citation

Bagrov V. G., Samsonov B. F., Shapovalov A. V. Aleksandr Vasilyevich, and Shirokov I. V. Complete Sets of Symmetry Operators Containing a Second-order Operator and the Problem of Separation of Variables in the Wave Equation. 1991, 1991.

MLA (9th ed.) Citation

Bagrov V. G., et al. Complete Sets of Symmetry Operators Containing a Second-order Operator and the Problem of Separation of Variables in the Wave Equation. 1991, 1991.