TSUTSULIAN, A. V. ATTRACTORS OF THE DEGENERATING EVOLUTIONARY EQUATIONS. Proceedings of the YSU A: Physical and Mathematical Sciences, Yerevan, Armenia, v. 34, n. 1 (192), p. 10–19, 2000. DOI: 10.46991/PYSUA.2000.34.1.010. Disponível em: https://journals.ysu.am/proceedings-phys-math/article/view/vol34_no1_2000_pp010-019. Acesso em: 23 may. 2026.