Michele
Mosca
Kliuchnikov, V., Maslov, D., & Mosca, M. (2016). Practical Approximation of Single-Qubit Unitaries by Single-Qubit Quantum Clifford and T Circuits. IEEE Transactions on Computers, 65, 161 – 172. http://doi.org/10.1109/TC.2015.2409842 (Original work published January 2016)