Lale, based on the lists that you've compiled, I think that your dissertation is going to be excellent! I tried to think of any novels that I'm familiar with that are set in these cities that are not on your list. I could think of none. I wish you all success with your dissertation. (Believe me, I know what's involved, at least in my discipline. I can only imagine what analysis must take place in your discipline!) Sorry I'm not more help.