Chapter 8 Validation

Author(s): Xavier Luri, Claus Fabricius, Teresa Antoja, Frédéric Arenou, Carine Babusiaux, Eduardo Balbinot, Christophe Barache, Nathalie Bauchet, Josep Manel Carrasco, Sékou Diakité, Francesca Figueras, Albert Garcia-Gutierrez, Amina Helmi, Carme Jordi, Shourya Khanna, Nicolas Leclerc, Albert Masip, Tatiana Muraveva, Pau Ramos, Céline Reylé, Annie Robin, Mercè Romero-Gómez, Jan Rybizki, Catherine Turon, Antonella Vallenari, Michael Weiler