LLIBRE, Jaume; VALLS, Claudia. Phase portraits on the unit sphere of the stretch-twist-fold flow. Nonlinear Analysis: Modelling and Control, [S. l.], v. 28, n. 5, p. 1020–1036, 2023. DOI: 10.15388/namc.2023.28.33088. Disponível em: https://www.zurnalai.vu.lt/nonlinear-analysis/article/view/33088. Acesso em: 5 jul. 2025.