FRANK, T. . Emergence and Subsiding of the First-wave COVID-19 Pandemic in Pakistan (2020): An Eigenvalue Analysis Based on Synergetics: First-wave COVID-19 pandemic in Pakistan . Proceedings of the Pakistan Academy of Sciences: B. Life and Environmental Sciences, [S. l.], v. 57, n. 4, p. 1–7, 2021. Disponível em: http://ppaspk.org/index.php/PPAS-B/article/view/143. Acesso em: 21 jun. 2021.