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                                      |  | Cost function adaptation (Signal Processing, Volume 80 , Issue 11, Nov 2000, pp. 2457 - 2473) |  
                                      |  |  
                                      |  |  | convex variable step-size (IEEE Signal Processing Letters, Volume 7, Issue 9, Sep 2000, pp. 256 - 258 |  
                                      |  |  | variable error-exponent (IEE Proceedings Vision, Image and Signal Processing, Volume: 147, Issue: 6, Dec 2000, pp. 516-526) |  
                                      |  | The phase is the series of the odd derivatives of the neperian gain (Circuits, Systems, and Signal Processing, Volume 21, Number 3,  May 2002,  pp.243-261) |  
                                      |  |  
                                      |  | Phase approximation by logarithmic sampling of gain (IEEE Transactions on Circuits and Systems II: Analog and Digital Signal Processing,  Volume: 50, Issue: 2, Feb 2003, 
                                        pp. 93- 101) |  
                                      |  |  
                                      |  | Circle fitting by weighted inversion (J. Electron. Imaging, Vol. 12, Jan2003, pp. 179-193) |  
                                      |  |  
                                      |  | Zeros localisation using FFT (IEEE Signal Processing Letters, Volume 11, Issue 10, Oct. 2004, pp. 817 - 820) |  
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                                      |  | The causal part of autocorrelation is minimum-phase (Signal Processing, Volume 89, Issue 6, June 2009, pp. 1032-1037) |  
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