1. Oscillator design problem;Anderson;IEEE Journal of Solid State Circuits,1971
2. Frequency limitations of active filters using operational amplifiers;Budak;IEEE Transactions on Circuit Theory,1972
3. An integrated wide-tunable sine oscillator;Doorenbosch;IEEE Journal of Solid-State Circuits,1976
4. A second generation current conveyor and its applications;Sedra;IEEE Transactions Circuit Theory,1970
5. Simple sinusoidal active RC oscillators;Soliman;International Journal of Electronics,1975