L. I. PETROVA. On Integrability of Mathematical Physics Equations. Novel Research Aspects in Mathematical and Computer Science Vol. 4, [S. l.], p. 1–7, 2022. DOI: 10.9734/bpi/nramcs/v4/2161A. Disponível em: https://stm.bookpi.org/NRAMCS-V4/article/view/7029. Acesso em: 3 jun. 2026.