Links (foundation that allows the endowed chair) (post master training gz-psychogolist, psychotherapist and clinical psychologist. ) (faculty Behavior- and Social studies, University of Groningen (GGZ institution, second employer Jos de Keijser) (website of research of bereaved after murder) (information about suicide prevention and care for bereaved) (information about the research on relatives of missing persons) (information about the research on bereaved persons of the plane disaster MH17)