Journal article (2009) - Óscar Ferreira (author), Paolo Ciavola (author), A Matias (author), L Perini (author), R Taborda (author), P Terefenko (author), E Trifonova (author), K Trouw (author), N Valchev (author), A van Dongeren (author), M. van Koningsveld (author), JJ Williams (author), C Armaroli (author), Y Balouin (author), J Benavente (author), L Del Rio (author), M Deserti (author), LS Esteves (author), K Furmanczyk (author), P Haerens (author)