Documentation R-E-T International Twin Consultation Reformation - Education - Transformation, São Leopoldo, Brazil, 2015 - Halle, Germany, 2016 - Brown, Stephen 1958-; Brown, Stephen 1958-; Anders, Christoph 1960-; Biehl, Michael 1956-; Biela, Anneheide von; Trott, Maureen (EMW, 2018)