P. Beg, I. A. Khan and M. T. Ahmed, “Tunable Four Phase Voltage Mode Quadrature Oscillator Using Two CMOS MOCCIIs,” Multimedia, Signal Processing and Communication Technologies, Aligarh, 14-16 March 2009, pp. 155-157.
http://dx.doi.org/10.1109/MSPCT.2009.5164198

has been cited by the following article:

• TITLE: A Quadrature Oscillator Based on a New “Optimized DDCC” All-Pass Filter

  AUTHORS: Achwek Ben Saied, Samir Ben Salem, Dorra Sellami Masmoudi

  KEYWORDS: Proposed Current Controlled Oscillators; CMOS 0.18 μm Process of TSMC; Current Conveyor; Differential Difference Current Conveyors

  JOURNAL NAME: Circuits and Systems, Vol.4 No.8, December 26, 2013

  ABSTRACT: In this paper, a new voltage-mode (VM), all-pass filter utilizing two second-generation current conveyors and tow differential difference current conveyors (DDCCs) is proposed. This filter uses a number of passive elements grounded capacitor. This structure of filter is used to realize a quadrature oscillator. The proposed circuits employ tow optimized differential difference translinear second generation current conveyers (DDCCII). These structures are simulated using the spice simulation in the ADS software and CMOS 0.18 μm process of TSMC technology to confirm the theory. The pole frequency can be tuned in the range of [11.6 - 39.6 MHz] by a simple variation of a DC current.