Dolan, Brian P. and Gupta, Kumar S. and Stern, A (2006) Noncommutative BTZ black hole and discrete time. Classical and Quantum Gravity, 24 (6). pp. 1647-1655. ISSN 0264-9381
Balachandran, A. P. and Govindarajan, T. R. and Gupta, Kumar S. and Kürkçüoğlu, Seçkin (2006) Noncommutative Two Dimensional Gravities. Classical and Quantum Gravity, 23 (20). pp. 5799-5810. ISSN 0264-9381
Balachandran, A. P. and Gupta, Kumar S. and Kürkçüoğlu, Seçkin (2005) Waves on noncommutative spacetimes. Physical Review D, 73 (2). ISSN 1550-7998