Aknowledgements

Many people had, through many years, helped on our projects. We will try not to forget anyone, now that we can share it with everybody. To all you, friends, anonymous or notorious, present or absent, our forever thank you! To those how can do it, we are always waiting for your return.

Our special particular acknowledgments to
Dr. João Contente	Photographic credits
Luis Venâncio	Photographic credits