“On the Invalidity of the Hawking-Penrose Singularity aTheoremsa and Acceleration of the Universe from Negative Cosmological Constant” (2013) Global Journal of Science Frontier Research, 13(25), pp. 21–30. Available at: https://journalofscience.org/index.php/GJSFR/article/view/103190 (Accessed: 26 October 2026).