Bhatta, CR. “Hardy Uncertainty Principle for Low Dimensional Nilpotent Lie Groups G<sub>4< Sub> (III)”. Kathmandu University Journal of Science, Engineering and Technology 6, no. 1 (June 18, 2010): 89–95. Accessed December 6, 2025. https://www.nepjol.info/index.php/KUSET/article/view/3315.