Deletion of Matrix of Complex Negotiation

Comment: from the massive list of references, it seems that this concept meets . I've read the few which have internet links, and they use it prominently - whether the rest are alse references|false is hard to tell, but based on the two which are accessible, I'd give this is a benefit of the doubt. The article is |rubbish, but that's not a reason to delete, and there seems to be more than just a single study to this concept
Stance: keep
Cited policy: Wikipedia:Notability (WP:GNG||WP:F||WP:RUBBISH)