@article{paperid:1054873, author = {Khakpoor, Barat Ali and BIDKHORI, ALIREZA and Kharazmi, Amirali}, title = {Design an urban spatial economy model with trading posts}, journal = {International Journal of Advanced Studies in Humanities and Social Science}, year = {2013}, volume = {1}, number = {7}, month = {July}, issn = {2345-2749}, pages = {215--224}, numpages = {9}, keywords = {urban- spatial economy- trading post- exchange}, }