contributions by Dorothea Baumann ... [et al. contributions by Barry Friedman ... [et al. contributions by Julie Barten ... [et al. contributions by Sarah Bertalan ... [et al. contributions by Achim Gnann...[et al. contributions by Barry Friedman ... [et al.] contributions by Dirk Snauwaert ... [et al. contributions by Simon Castets ... [et al. contributions by George Hargreaves ... [et al. contributions by Alyson Baker ... [et al.