Noncommutative geometry: fuzzy spaces, the Groenewold-Moyal plane. Balachandran, Aiyalam P.; Qureshi, Babar Ahmed — 2006 SIGMA. Symmetry, Integrability and Geometry: Methods and Applications [electronic only]
Quantum fields on noncommutative spacetimes: theory and phenomenology. Balachandran, Aiyalam P.; Ibort, Alberto; Marmo, Giuseppe; Martone, Mario — 2010 SIGMA. Symmetry, Integrability and Geometry: Methods and Applications [electronic only]