Christian T. Stempfle speaks in his recent article "US Supreme Court constrains jurisdictional power of US courts regarding foreign companies“ published on 23 April 2014, in Deutschen AnwaltSpiegel, issue 8/2014, about the limits of jurisdictional power of US courts regarding foreign companies. The article is available under http://www.deutscheranwaltspiegel.de/nobody-at-home/#more-1720 (German only).