Nolen-hoeksema, Susan (yale University), Fredrickson, Barbara (university Of Michigan), Loftus, Geoffrey (university Of Washington (seattle)), Lutz, Christel (university College Utrecht) (1) Vries, Peer, Vries, Annelieke (1) Wild, Wim De, Brekelmans, Floris, Emmerik, Willie Van, Spier, Jos (1) Zee, Ad Van Der, Wellenberg, Marloes (1) Offermans, Ruud (1)