1. Addo K (2015) Core labour standards and international trade: lessons from the regional context. Springer, Heidelberg
2. Belser EM (2007) The White Man’s Burden: Arbeit und Menschenrechte in einer globalisierten Welt. Staempfli Verlag, Bern
3. Charnovitz S (1987) The influence of international labour standards on the world trade regime: a historical overview. Int Labour Rev 126:565–584
4. Charnovitz S (1998) The moral exception in GATT. Virginia J Int Law 38:689
5. Charnovitz S (2002) The law of environmental ‘PPMs’ in the WTO: debunking the myth of illegality. Yale J Int Law 27:59–110