Tu, S. H., Y. S. Hwang, J. J. Chen, A. M. Soliman, and C. M. Chang,
"OTA-C Arbitrary Phase Shift Oscillators",
IEEE Transactions Instrumentation and Measurements, vol. 61, issue 8, pp. 2305-2319, 2012.
Said, L., A. Madian, M. Ismail, and A. M. Soliman,
"Digitally Programmable Lossless Floating Inductor Realization using Current Differential Amplifier (CDA)",
16th IEEE Mediterranean Electrotechnical Conference (MELECON), Hammamet, Tunisia, March, 2012.