“Accelerating And Decelerating Hypersurface-Homogeneous Cosmological Models In Barberas Second Self-Creation Theory”. Global Journal of Science Frontier Research 12, no. F3 (April 10, 2012): 41–49. Accessed August 13, 2026. https://www.journalofscience.org/index.php/GJSFR/article/view/100222.