A court in Cologne banned further passages of a book of revelations about former German chancellor Helmut Kohl as part of an ongoing legal dispute. Affected are not only quotes from Kohl, but also descriptions and assessments by the author Heribert Schwan, who had previously worked as a ghostwriter for Kohl, the Cologne Higher Regional Court stated on Tuesday. Although witnesses such as Kohl’s son Walter had confirmed in the previous court proceedings that Kohl had not entered into a written confidentiality agreement with Schwan, the court assumed that confidentiality was implied because Schwa…