Strömberg, Lena J-T. “Differentiations of Nonlinear Functions Related to States in Magic(n), Cosmology and the Poincare Conjecture”. Journal of Human, Earth, and Future 1, no. 4 (December 1, 2020): 197–201. Accessed June 3, 2025. https://hefjournal.org/index.php/HEF/article/view/39.