http://fly.isti.cnr.it/sl/fs-and-research.html Free software and research ( και Software licenses ). Francesco Potortì <http://fly.isti.cnr.it/> Abstract– Free software licenses are a natural choice in a research environment. In the following, we will try to back this simple statement with some considerations and examples, in an effort to analyse the significant interactions between free software and research. An appendix <http://fly.isti.cnr.it/sl/licenses.html> lists and describes the most common terms used when speaking about software licenses and suggests guidelines for choosing a free license. Ευχαριστώ Σινιοράκης Σπύρος.