Hello, Dear Int-Boundaries Members. My name is LIU Yan. Before I was a Professor from Geography Dept. of Hebei Teacher's Univ. of China. Now I live in Vienna, to be a student of PhD because I am still young. Through my study and work, I learned about International Boundary Studies. I found it extremely interesting and decided to subscribe to International Boundaries journal. I am more interested in active boundary, for example, the market boundary, the tour regional boundary, ect, I hope I can learn more and more knowledge about Boundary from you. thank you, Yan LIU [log in to unmask]