memyselfandi

What a fascinating topic. I think this would be perfect as a research project. A good database for research papers online is google scholar (scholar.google.com). I found one paper that could aid you in your studies. You can obtain a copy of it via the link pasted below. Best of luck for your future studies. http://link.springer.com/chapter/10.1007/978-1-4613-4609-8_8