List of Articles Polycentric Open Access Article Abstract Page Full-Text 1 - Russia and the New World Order(with emphasis on the war between Russia and Ukraine in 2022) ahmed challob Open Access Article Abstract Page Full-Text 2 - An Analytical Model for Polycentricity Measurement on Urban Regions (Case Study: Tehran Urban Region) میلاد Homafar M.R Pourjafar Open Access Article Abstract Page Full-Text 3 - The Nature of the Land Area of the City Center in Regional Planing Four spatial phenomena at the Metropolis TehranAbstrac mirnajaf mousavi amir fathi farzane Open Access Article Abstract Page Full-Text 4 - Analysis of factors affecting the formation of multicore structure of cities (Case study: Kermanshah metropolis) Aziz mohamadyari Bakhtyar ezatpanah Karim Hosainzadeh Dalir 10.30495/jupm.2022.29212.4024