BADALIAN, L.H.; KRIVOROTOV, V.F. USING GAUGING IN NONLINEAR PROBLEMS OF ECONOMICS, PHYSICS AND TECHNOLOGY. Proceedings of the YSU A: Physical and Mathematical Sciences, Yerevan, Armenia, v. 49, n. 3 (238), p. 31–36, 2015. DOI: 10.46991/PSYU:A/2015.49.3.031. Disponível em: https://journals.ysu.am/index.php/proceedings-phys-math/article/view/vol48_no3_2014_pp031-036. Acesso em: 19 may. 2024.