I am looking for a finite collection of negotiation tactics (such as argumentation, ultimatum, boulwarism). Such tactics should be clearly defined and described in the article.
Marco, you have just opened a tightly packed can of worms: negotiation is a vast subject and there are almost no general tactics/strategies/techniques. Rather, there are numerous insights specific to the many contexts in which people conduct negotiations, from interpersonal to inter-organizational to international. Articles in each of these contexts discuss the relevant tactics/strategies/techniques. To complicate matters, various disciplines (including game theory, communications, organizational behavior, social psychology etc.) address these issues focusing on aspects specific to each discipline. The article you are looking for may not have been written yet... or not in the way you expect.
My advice would be to read the reference bibliography listed in the Harvard Negotiation Program. I found it extremely useful as guidelines and techniques. Then you can improve them with your own personal experience and practice.
I have modeled a two party behaviour with the different text books but very especially with "Negotiation", by Richard Luecke (Harvard Business Essentials)
The GlobalEd project at the University of Connecticut put together a list of strategies for coding communications (conflictual, cooperative, reciprocal, creative, assertive, etc.). It is not perfect but depending on what you are looking to quantify and the data you have, it might be a start. (full disclosure, I worked on this project in grad school)
Boyer, Mark A., et al. "Gender and Negotiation: Some Experimental Findings from an International Negotiation Simulation1." International Studies Quarterly 53.1 (2009): 23-47.
Here are 20 topics from the articles with words negotiat* AND (tactic* OR strategi* OR technique*) in their titles. Each topic is represented through 20 words and 20 phrases, through which it is discussed in this articles. In addition for each topic there are qotes from 2 articles in which the topic is on first place.
As mentioned above one of the best negotiation programmes is the Harvard negotiation program and they have also published books, e.g. "Getting to Yes" by Fisher and Ury...