In this context, the continents are also referred to as “kept underdeveloped”. It is also pointed out that this is an attempt to avoid the "discriminatory" terms developing countries or 3rd world .
- Christof Meueler: Trikont. In: Spektrum.de. Retrieved September 25, 2018 .
- Jutta Ditfurth : Through invisible walls: how is one like that left? Cologne 2002, p. 129.
- Reinhard Johler : At home in Europe: Forms of Europeanization in the region . Accompanying volume for the exhibition in the reel tower of Hohentübingen Castle from May 6th to July 4th, Tübingen 2004, p. 150.