1. Vector median filters;Astola,1990
2. Activities not arising from the brain;Brittenham,1990
3. Recommended standards for elect roretinograms and visual evoked potentials;Celesia,1993
4. Evoked Potentials in Clinical Medicine;Chiappa,1990
5. Weighted averaging of evoked potentials;Davila;IEEE Trans. Biomed. Eng.,1992