Automotive News (06.03.2017): Why GM is selling Opel to PSA. Ammann says business profile will improve ‘immediately’, http://www.autonews.com/article/20170306/OEM/170309866/why-gm-is-selling-opel-to-psa [20.03.2017]
The Telegraph (06.03.2017): Peugeot buys Vauxhall and Opel from General Motors for £1.9bn: What happens next?, http://www.telegraph.co.uk/business/2017/03/06/peugeot-buys-vauxhall-opel-general-motors-happens-next/ [20.03.2017]
Wirtschaftswoche (15.03.2017): Knackpunkte beim Opel-Deal: Worüber Opel und Peugeot verhandeln müssen (Sticking points of the Opel deal: What Opel and Peugeot must bargain about) (in German), http://www.wiwo.de/unternehmen/auto/knackpunkte-beim-opel-deal-worueber-opel-und-peugeot-verhandeln-muessen/19395532-all.html