`  ::::::::::(edit conflict)I would prefer to use sources written by outsiders, i.e. not by Dutch or Flemish people, since many of them have a stake in the debate. E.g. Couwenberg (and the ANV source used in the article) is a known defender of the Greater Dutch cause. To use him as evidence that we are one ethnicity is kind of a self-fulfilling prophecy (just like using hardcore Belgicists to prove that the Flemings are ethnically Belgians would be unwise). Anyway, even in Couwenbergs writings, we find plenty of evidence of opposing views (I am wary of using him because he is openly partial in the debate, I'm not claiming that he isn't knowledgeable at the same time). E.g. here, one can find statements like ``De vorig jaar overleden historicus E.H. Kossmann karakteriseerde de Nederlands-Vlaamse betrekkingen eens kort en klaar als twee culturen naast elkaar, maar niet in gesprek met elkaar.`` Two cultures, not one. And Couwenberg continues with his opinion on this ``In grote trekken is dat nog onverminderd het geval.`` The whole of thta text he wrote indicates that he believes that the Dutch and the Flemish should have one culture, and that such unification is perfectly possible, but that it is far from the current reality nevertheless. Butas I said, let's hear from external sources, outside Belgium and the Netherlands.   `