your question is very interesting, but is a matter of long discussion and I think you'll find different opinions. If you look at global perspectives, most publications are made in journals with high impact factor and, as the attached paper says, in English. Now, when you want it you've investigated actually reaches those who need that information, where you would publish? It is true, though not in all cases, as you do in journals with high impact factor, you ensure that reviewers are of high standard and when you manage to publish can ensure that what you did have high scientific value and may transfer with producer safety. However, it is likely to do it in regional magazines and in the language that can be read by most people and not only by researchers related to the theme. regards