It's the scientific literature not produced/published by traditional academic sources. It's not necessarily bad, but it can be. So, anything from government agency recommendations and annual reports to company papers, NGO brochures, etc.
30 janvier 2017
1
1
Vous n'avez pas encore trouvé vos réponses ?
Écrivez vos questions et profitez de l'aide des locuteurs natifs !