Acknowledgements

 Gabriel Ronco

Maria Elisa Agostino

Eugenia Antonucci

Silvia Antunes

Raúl Vicente Baz

Giuseppe Benetton

Mirna Bonazza

José Manuel Casado Pramio

Alessandra Chiarelli

Marta Crippa

José Carlos de Lera

Raymond Dittrich

Sofia Fattorillo

Maria Figueira

Miguel Antonio Franco

Pedro José Gómez González

Roberto Giuliani

Paula Gonçalves

Julia Haberstock

José Heras Rodríguez

Gregor Hermann

Michele Magnabosco

Joâo Mora

Michael Noone

Kristina Popelka

Francisco Rodilla

Maria Jose Silva Pereira

Annarita Soraci

Cristina Targa

Armando Tomesani

Anna Villa

Mary Warnement