The authors wish to thank Fundac¸ ˜ao para a Ciˆencia e Tecnologia (POCTI/CVT/ 37545/2001) for providing financial support and Dr. Lu´ıs Gama for advice on statistical analysis.
The authors wish to thank Fundac¸ ˜ao para a Ciˆencia e Tecnologia (POCTI/CVT/37545/2001) for providing financial support and Dr. Lu´ıs Gama for advice on statisticalanalysis.
Thank the Authors wish to para a Ciencia E Fundac¸ ~ao Tecnologia (POCTI / CVT / 37545/2001) for providing Financial Support and Advice for Dr. Gama Lu'ıs on Statistical Analysis.
The authors wish to thank Fundac. ˜. Ao para a Ci Pollo encia e Tecnologia (POCTI / CVT / 37545 / 2001) for providing financial support. And Dr. Lu pixel ı s Gama for advice on statistical analysis.