“On the Invalidity of the Hawking-Penrose Singularity ATheoremsa and Acceleration of the Universe from Negative Cosmological Constant”. Global Journal of Science Frontier Research 13, no. 25 (May 30, 2013): 21–30. Accessed October 26, 2026. https://journalofscience.org/index.php/GJSFR/article/view/103190.