Wankhade, Rajesh. “Plane Symmetric Inflationary Universe With Hybrid Expansion Law and Time Varying Λ”.
International Journal of Advanced Astronomy 6, no. 1 (April 10, 2018): 5–7. Accessed April 9, 2025.
https://sciencepubco.com/index.php/IJAA/article/view/9551.