TY  - JOUR
TI  - Shift from the central place theory to the urban network theory in urban systems research
AU  - ÇÖTELİ, M.G.
AU  - YENEN, Z.
JO  - Sigma Journal of Engineering and Natural Sciences
PY  - 2012
VL  - 4
SP  - 45
EP  - 63
DO  - 
ER  -